English words: o to oathlet

English words o to oathlet

1. o adjective, letter, interfix, interjection, noun, number, particle, prefix, preposition, suffix, symbol /ˈəʊ/: The fifteenth letter of the English alphabet, called o and written in the Latin script.
2. O-1 noun: A visa granted to temporary alien workers with exceptional abilities.
3. O-1A noun: A visa granted to temporary alien workers with exceptional abilities in science, education, business or athletics.
4. O-1B noun: A visa granted to temporary alien workers with exceptional abilities in the movie or television industries.
5. o algo phrase: Or something.
6. O Antiphon noun: One of the antiphons sung or read at vespers at the end of Advent, in the days immediately before Christmas, each beginning “O …” in Latin and English,...
7. o. b. o. phrase, prepositional phrase: Initialism of on behalf of.
8. O'Banion proper noun: A surname from Irish.
9. O'Bannon proper noun: A surname.
10. O'Beirne proper noun: A surname from Irish.
11. O'Boyle proper noun: A surname.
12. O'Brian proper noun: A surname.
13. O'Brien proper noun /əˈbɹaɪən/: A surname from Irish.
14. O'Brien potatoes noun: Synonym of potatoes O'Brien.
15. O'Callaghan proper noun: A surname from Irish.
16. O'Casey proper noun: A surname from Irish.
17. o caudata noun /ˈoː.kaʊˈdɑːtə/: A form of the letter o modified by the addition of a diacritical “tail”: ⟨ǫ⟩, used in Old Norse.
18. o-chem noun /ˈoʊ.kɛm/: Organic chemistry.
19. O clip noun: A kind of crimped hose clip over a barbed spigot, used with gas hoses in oxyfuel welding and cutting.
20. o'clock adverb /əˈklɒk/: In conjunction with a numeral, indicates the time within a twelve-hour period (midnight to noon or noon to midnight), specifically the time when the hour...
21. o'clockish adverb: After a numeral, denotes a time of around the start of that hour.
22. o-CNB noun: Abbreviation of ortho-chloronitrobenzene.
23. O'cocker noun /oʊˈkɑkəɹ/: A native of Ocracoke Island, North Carolina, as opposed to an Ocracoker, which is any resident.
24. O'Connell proper noun: A surname from Irish.
25. O'Connellism noun: Support for Daniel O'Connell (Dónall Ó Conaill; 1775–1847), Irish political leader who campaigned for Catholic emancipation.
26. O'Connellite noun: A supporter of Daniel O'Connell (Dónall Ó Conaill; 1775–1847), Irish political leader who campaigned for Catholic emancipation.
27. O'Conner proper noun: A surname from Irish.
28. O'Connor proper noun: A patrilineal surname from Irish.
29. O&D adjective, noun, verb: Alternative form of OD.
30. o'danielite noun: A mineral comprising mainly zinc, arsenic, and oxygen.
31. o-dark-thirty noun: The wee hours.
32. O'Dea proper noun /oʊˈdiː/: A surname from Irish.
33. O'Dell proper noun: A surname.
34. O'Doherty proper noun: A surname from Irish.
35. O'Donnel proper noun: A surname from Irish.
36. O'Donnell proper noun: A surname from Irish.
37. O'Donoghue proper noun /ɒˈdɒ.nəˌhjuː/: A surname from Irish; variant forms Donahue, Donoghue, Donohue, O'Donohue.
38. O'Donohue proper noun: A surname from Irish, variant of O'Donoghue.
39. O'Donovan proper noun: A surname from Irish.
40. O'Dowd proper noun: A surname from Irish.
41. O'Driscoll proper noun: A surname.
42. O'Dwyer proper noun: A surname from Irish.
43. o'er adverb, preposition /ɔɹ/: Contraction of over
44. o'ercome noun, verb: Alternative form of overcome.
45. o'ergrown adjective: overgrown.
46. o'erhead adjective: Contraction of overhead.
47. o'erlay noun, verb: Alternative form of overlay.
48. o'erleap verb: Contraction of overleap
49. o'ernight adverb: Alternative form of overnight.
50. o'erthrow verb: Alternative form of overthrow.
51. o-face noun: The facial expression made during orgasm.
52. O'Fallon proper noun: A surname from Irish.
53. O'Farrell proper noun: A surname.
54. o-fer noun: Alternative spelling of oh for.
55. O'Flaherty proper noun /oʊˈflɑːərti/: A surname from Irish
56. O'Flynn proper noun: A surname from Irish.
57. O&G adjective, noun: Alternative form of OG.
58. O'Gara proper noun: A surname from Irish.
59. O'Gorman proper noun: A surname from Irish.
60. o-grade noun: In Proto-Indo-European linguistics, an ablaut form of a Proto-Indo-European root, characterised by the presence of the */o/ vowel phoneme in place of */e/.
61. O'Grady proper noun: A surname from Irish.
62. o᷍i symbol: An orthographic ⟨oi⟩ with a diacritic that marks it as being the CHOICE vowel, as in the word "oil".
63. o. k. adjective, interjection: Alternative form of OK.
64. O'Keefe proper noun: A surname from Irish.
65. O'Keeffe proper noun: A surname from Irish.
66. O'Keeffian adjective /oʊˈkiːfiːɪn/: Of or relating to American artist Georgia O'Keeffe.
67. O'Kelly proper noun: An Irish surname.
68. O'Leary proper noun /oʊ ˈle.ɹi/: A surname from Irish.
69. O level noun: A subject-based qualification superseded in England by GCSE, but still available internationally throughout the Commonwealth of Nations.
70. O-lock noun: Synonym of wheel lock.
71. O'Loughlin proper noun: A surname from Irish.
72. O&M noun: Initialism of Order of Merit.
73. O. M. G. interjection: Alternative form of OMG.
74. o-machine noun: Abbreviation of oracle machine.
75. O'Malley proper noun /oʊˈmæli/: A surname from Irish.
76. O'Mara proper noun: A surname from Irish.
77. O mark noun: A circle that serves as a check mark in Japanese: ◯.
78. -o-matic suffix: Appended to titles of (often fictional) machines, especially to suggest that the verb to which the suffix is appended is its primary function.
79. O me of little faith phrase: Drawing attention to one's own doubt or skepticism.
80. O'Meara proper noun: A surname from Irish.
81. -o-meter suffix: Alternative form of -meter.
82. o-mikuji noun: A random fortune on a strip of paper, available from Shinto shrines and Buddhist temples in Japan in exchange for a small offering.
83. o-mok-see noun: Gymkhana.
84. O my God interjection: Dated form of oh my God.
85. o.n.o. phrase: Alternative form of ono (“or nearest offer”).
86. o'n'ry adjective: Pronunciation spelling of ornery.
87. O'Neal proper noun: A surname from Irish, variant of O'Neill.
88. O'Neil proper noun: A surname from Irish [in turn originating as a patronymic], a variant of O'Neill.
89. O'Neill proper noun /əʊˈniːl/: A surname from Irish.
90. O'Neill colony noun: Synonym of O'Neill cylinder.
91. O'Neill cylinder noun: A proposed space settlement consisting of two cylinders that rotate to provide artificial gravity via centrifugal force.
92. O'Neillian adjective: Of or relating to Eugene O'Neill (1888–1953), American playwright who introduced realism into American drama.
93. O'Neillism noun: The policies of Terence O'Neill (1914–1990), fourth Prime Minister of Northern Ireland.
94. O'Neillite noun: A supporter of O'Neillism.
95. O&O adjective, noun: ore/oil ; designating that a ship can carry both ore and oil
96. o-o-a-a noun: Alternative form of ooaa.
97. o-o-aa noun: Alternative form of ooaa.
98. O'odham noun /ɔʔɔˈtam/: A person of Tohono O'odham (formerly Papago), Akimel O'odham (formerly Pima), or other O'odham ancestry.
99. O$P$ phrase: Abbreviation of owe money, pay money: an admonition to debtors, especially by loansharks (Ah Longs).
100. O. P. P. noun: Alternative form of OPP.
101. O'Quinn proper noun: A surname from Irish.
102. -o-rama suffix: Alternative spelling of -orama.
103. O'Ree proper noun: A surname.
104. O'Reilly proper noun /əˈɹaɪli/: A surname from Irish [in turn originating as a patronymic] from Reilly.
105. O'Riley proper noun: A surname from Irish.
106. O-ring noun: A circular gasket, usually made of rubber.
107. O'Riordan proper noun: A surname from Irish.
108. o-rite interjection: Pronunciation spelling of alright.
109. o rly interjection: Expressing interest, usually with implied sarcasm or disdain.
110. O/RM noun: Alternative form of ORM.
111. O'Rourke proper noun: A surname from Irish.
112. O'Ryan proper noun: A surname from Irish.
113. o's adjective, noun, pronoun /əʊz/: Initialism of olefin and surfactant.
114. -o-saurus suffix: Forms names for real or imaginary dinosaurs; see -saurus.
115. o-scope noun: oscilloscope
116. O-shaped adjective: Shaped like the capital letter "O".
117. O'Shaughnessy proper noun: A surname from Irish.
118. O'Shea proper noun /oʊˈʃeɪ/: A surname from Irish.
119. O'Shea's vent barnacle noun: Vulcanolepas osheai, a species of barnacle found around hydrothermal vents and active underwater volcanoes.
120. O-shot noun: Abbreviation of orgasm shot.
121. O someone of little faith phrase: A response to an expression of doubt or uncertainty of the specified person or people.
122. O star noun: Synonym of O-type star.
123. o-stem noun: A word, especially a noun in Indo-European linguistics, whose stem ends in /o/.
124. O'Sullivan proper noun /əʊˈsʌl.ɪv.ən/: A surname from Irish.
125. o'th' contraction /əð/: Of the.
126. O'Toole proper noun: An Irish surname.
127. O/W noun: Initialism of overt/withhold.
128. O-Week noun: Abbreviation of Orientation Week.
129. o-word noun: Any word beginning with o that is not normally taboo but is considered (often humorously) to be so in the given context.
130. O ye of little faith phrase: A response to an expression of doubt or uncertainty.
131. O.Z. noun: Alternative form of OZ (“ounce”).
132. o11y noun: Abbreviation of observability.
133. O2 symbol: Both eyes.
134. OA adjective, noun, preposition: Initialism of on or about.
135. OAB noun: Initialism of overactive bladder.
136. OABS noun: Initialism of overactive bladder syndrome
137. OAC noun: Initialism of oral anticoagulant.
138. Oadby proper noun: A town in Oadby and Wigston borough, Leicestershire, England.
139. OADM noun: Initialism of optical add/drop multiplexer.
140. OAE noun: Initialism of old Antarctic explorer (“a person who has spent significant time in Antarctica”).
141. OAer noun: A member of the Order of the Arrow.
142. oaf noun /əʊf/: A person, especially a large male, who is clumsy or a simpleton.
143. oaf-rocked adjective: Weak of intellect from infancy.
144. oafdom noun: The state or condition of an oaf; oafishness.
145. oafish adjective /ˈoʊfɪʃ/: Characteristic of or resembling an oaf; clumsy, stupid.
146. oafishly adverb: in an oafish manner
147. oafishness noun: The state or condition of being oafish; stupidity; dullness; folly.
148. oaflike adjective: oafish
149. OAG noun: Initialism of office of the attorney general.
150. Oahu proper noun /oʊˈɑhu/: The third-largest island of Hawaii, included in the City and County of Honolulu.
151. Oahuan adjective, noun: Of or relating to Oahu in Hawaii.
152. oak adjective, noun, prepositional phrase, verb /əʊk/: A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in...
153. oak apple noun: A spherical type of oak gall, produced by an oak gall wasp (tribe Cynipini).
154. oak-blue noun: Any of various lycaenid butterflies of the genus Arhopala, of Asia and Australasia.
155. oak decline noun: A disease of uncertain origin affecting mature pedunculate oak (Quercus robur) and sessile oak (Quercus petraea) trees in Britain.
156. oak fern noun: A fern of genus Gymnocarpium (syn. Thelypteris) which grows on trees, especially Gymnocarpium dryopteris.
157. oak gall noun: A gall produced by an oak by larvae of a common oak gall wasp (Cynips quercusfolii).
158. oak leaf noun: Alternative form of oakleaf.
159. oak leather noun: Fungal mycelia in the fissures of old oak trees.
160. oak-leaved adjective: Used in the names of various plants the leaves of which resemble those of the oak.
161. oak of Jerusalem noun: Synonym of Jerusalem oak (“epazote”).
162. oak paper noun: Wallpaper with a veined pattern like oak wood.
163. oak processionary moth noun: Thaumetopoea processionea, a processionary native to oak forests across southern Europe, also occurring as an invasive species in northern Europe.
164. oak rough bulletgall wasp noun: The gall wasp Disholcaspis quercusmamma.
165. oak tag noun: A flexible material akin to thick paper.
166. oak titmouse noun: A bird of species Baeolophus inornatus of small tits in family Paridae, found from southern Oregon to Baja California.
167. oak tree noun /ˈəʊk ˌtɹiː/: A tree of the genus Quercus, bearing acorns and having lobed leaves.
168. oak wilt noun: A disease of oak trees caused by a fungus, Bretziella fagacearum, affecting trees in the eastern US. Its origin is unknown.
169. oak wreath noun: A chaplet of common oak leaves woven to form a crown honouring a soldier who had saved the life of a citizen in battle.
170. oakbark noun: The bark of the oak tree, often specifically as a source of tannic acid; tan.
171. Oakboy noun: A member of the Hearts of Oak, a protest movement of farmers and weavers that arose in County Armagh, Ireland, in 1761, in reaction to excessive taxation.
172. Oakdale proper noun: A city in Stanislaus County, California.
173. Oake proper noun: A village and civil parish in Somerset, England, previously in Somerset West and Taunton district (OS grid ref ST1525).
174. oaked adjective: Of a wine: aged in oak so that it acquires flavor from tannins in the wood.
175. oaken adjective /ˈəʊk.ən/: Made from the wood of the oak tree. Also in metaphorical uses, suggesting robustness.
176. oaken towel noun: A truncheon.
177. Oakenfold proper noun /ˈəʊkənˌfəʊld/: A surname.
178. oakenshaw noun: A grove of oaks.
179. Oakes proper noun: A suburban area of Huddersfield, West Yorkshire, England (OS grid ref SE112341).
180. Oakeshott proper noun: A surname
181. Oakeshottean adjective: Alternative form of Oakeshottian.
182. Oakeshottian adjective, noun: Of or relating to Michael Joseph Oakeshott (1901–1990), English philosopher and political theorist.
183. Oakey proper noun: A surname.
184. Oakfield proper noun: An unincorporated community in Worth County, Georgia.
185. Oakford proper noun: A suburb of Perth, Western Australia, Australia.
186. oakgall noun: Alternative spelling of oak gall.
187. Oakham proper noun /ˈəʊkəm/: A town and civil parish (with a town council) in and the county town of Rutland, England (OS grid ref SK8508).
188. Oakhill proper noun: A village in Ashwick parish, Mendip district, Somerset, England (OS grid ref ST6347).
189. Oakhurst proper noun: A suburb of Sydney in the Blacktown council area, New South Wales, Australia.
190. Oakie noun: Alternative form of Okie (“person from Oklahoma”).
191. oakiness noun: The property of being oaky
192. Oakington proper noun: A village in Oakington and Westwick parish, South Cambridgeshire district, Cambridgeshire, England (OS grid ref TL4164).
193. Oakland proper noun /ˈoʊklənd/: A township in Ontario, Canada.
194. Oaklander noun: A native or inhabitant of Oakland, California.
195. Oaklands proper noun: A town in the Riverina area of southern New South Wales, Australia.
196. oakleaf noun /ˈəʊkˌliːf/: The leaf of the oak.
197. oakleaf hydrangea noun: A type of deciduous shrub native to the southeastern United States, often cultivated as an ornamental plant, of species Hydrangea quercifolia.
198. Oakleigh proper noun: A suburb in south-east Melbourne, Victoria, Australia.
199. oakless adjective: Having no oak trees.
200. oaklet noun: A little oak tree.
201. Oakley proper noun /ˈəʊkli/: A village and civil parish in Bedford borough, Bedfordshire (OS grid ref TL0153).
202. oaklike adjective: Resembling or characteristic of an oak or its wood.
203. oakling noun: A small or young oak tree.
204. Oaklyn proper noun: A borough of Camden County, New Jersey, United States.
205. Oakman proper noun: A surname.
206. Oakmont proper noun: A village and special taxing district in Montgomery County, Maryland.
207. oakmoss noun: Evernia prunastri, a lichen found primarily on oak trees and used in perfume.
208. oakness noun: The quality of being oak, or of being an oak tree.
209. Oakridge proper noun: A city in Lane County, Oregon, United States.
210. oaks noun: A stakes race in which entry is restricted to 3-year-old fillies.
211. Oaksey proper noun: A village and civil parish in north Wiltshire, England (OS grid ref ST9893).
212. oaktag noun: A flexible material akin to thick paper.
213. Oakton proper noun: An unincorporated community in Barton County, Missouri.
214. Oaktown proper noun: Oakland (a city in California).
215. oaktree noun: Alternative form of oak tree.
216. oakum noun /ˈəʊkəm/: Coarse fibres separated by hackling from flax or hemp when preparing the latter for spinning.
217. Oakville proper noun: A suburb of Sydney in the City of Hawkesbury, New South Wales, Australia.
218. oakware noun: Articles made from oak.
219. oakwood noun: A wood populated with oak trees.
220. oakworm noun: A caterpillar of a moth in the genus Anisota.
221. Oakworth proper noun: A village in the Worth Valley, in Keighley parish, Metropolitan Borough of Bradford, West Yorkshire, England (OS grid ref SE0338).
222. oaky adjective /ˈoʊki/: Resembling or characteristic of the oak tree or its wood.
223. OAL noun: Initialism of other airline.
224. Oamaru proper noun: A large town bordering the Pacific Ocean in North Otago, New Zealand.
225. OAMC noun: Initialism of Once-a-month cooking.
226. -oan suffix: Used to convert the name of an atom or ion to an adjective that means containing cations or anions of that atom or ion.
227. Oana proper noun: A female given name.
228. oangium noun: An apocytial oogonium that forms oospores by free cell-formation, as in Saprolegnieae.
229. OAP noun: Initialism of orthogonal array processor.
230. oar noun, verb /ɔː/: A type of lever used to propel a boat, having a flat blade at one end and a handle at the other, and pivoted in a rowlock atop the gunwale, whereby a rower...
231. oar blade noun: The flanged portion of an oar; not the handle nor the shaft.
232. oar-hole noun: Alternative form of oarhole.
233. oar in someone's boat noun: An interest in someone else's affairs, possibly through meddling.
234. oarage noun: The act of using oars; rowing.
235. oarblade noun: Alternative form of oar blade.
236. oared adjective, verb: Having oars.
237. oarfish noun: A large, greatly elongated, type of fish of the family Regalecidae.
238. oarhole noun: a slot or opening in the side of a galley or ship through which an oar is fitted
239. oarless adjective: Without oars.
240. oarlessness noun: Absence of oars.
241. oarlike adjective: Resembling or characteristic of an oar.
242. oarlock noun: A usually U-shaped device attached to the gunwale of a rowboat to hold the oars in place while rowing.
243. oarman noun: Alternative form of oarsman.
244. oarsman noun: A person who rows a boat, either alone or with others.
245. oarsmanship noun: The skill of rowing a boat.
246. oarsperson noun: A rower; an oarswoman or oarsman
247. oarswoman noun: A female oarsman.
248. oart noun: A coconut plantation.
249. oarweed noun: A brown alga, Laminaria digitata, found on exposed shores.
250. oary adjective: Like an oar
251. OAS noun: Initialism of oral allergy syndrome.
252. oasal adjective: Oasitic.
253. OASDI noun: Initialism of old age, survivors, and disability insurance.
254. oasean adjective: Of or relating to an oasis.
255. OASI noun: Initialism of old age and survivors insurance.
256. oasification noun: The process of restoring water, soil, and plant life to an environment that has been degraded by soil erosion.
257. oasis noun /əʊˈeɪsɪs/: A spring of fresh water, surrounded by a fertile region of vegetation, in a desert.
258. Oasisamerican adjective, noun: Of or relating to Oasisamerica.
259. oasisless adjective: Lacking an oasis.
260. oasislike adjective: Resembling or characteristic of an oasis.
261. oasitic adjective: Of or relating to an oasis.
262. oast noun /əʊst/: A kiln for drying tobacco, malt and especially hops.
263. oast house noun: A building containing oasts, used in conjunction with hop harvesting.
264. oasthouse noun: Alternative spelling of oast house.
265. oat noun, prepositional phrase /ˈəʊt/: Widely cultivated cereal grass, typically Avena sativa.
266. oat burner noun: A horse.
267. oat cell noun: A small oval cell that resembles an oat grain and is characteristic of small-cell carcinoma.
268. oat grass noun: Arrhenatherum species
269. oat-like adjective: Alternative form of oatlike.
270. oat milk noun: A milky liquid made from oats and used as a milk substitute, cooking ingredient or beverage.
271. oat opera noun: A film or novel depicting adventures of characters in the American Old West; a western.
272. oat soda noun: Beer.
273. oatbread noun: bread made with oatmeal
274. oatcake noun: Any of many flat biscuits, or cakes, made from oatmeal.
275. -oate suffix: Used to form the names of salts and esters of carboxylic acids e.g. benzoate, hexanoate
276. oateater noun: A film depicting adventures of characters in the American Old West; a western.
277. oaten adjective /ˈəʊtən/: Of, pertaining to, or made of oats.
278. oaten bread noun: Any type of bread made or prepared with oats.
279. oatenmeal noun: oatmeal
280. oater noun /ˈoʊ.tɚ/: A movie or television show about cowboy or frontier life; a western movie.
281. Oates proper noun /əʊts/: A surname.
282. Oatey proper noun: A surname.
283. oatflake noun: A flake made from oat.
284. oatgrass noun: Arrhenatherum species
285. oath noun, verb /ˈəʊθ/: A solemn pledge or promise that invokes a deity, a ruler, or another entity (not necessarily present) to attest the truth of a statement or sincerity of...
286. oath-brother noun: One of two (or more) men who have sworn an oath together.
287. oath-helper noun: One brought into court to swear to the truth and testify on oath on behalf of the accused, to clear them from suspicion of crime.
288. oath-helping noun: Testimony introduced for the purpose of bolstering the credibility of a witness and their testimony, rather than proving or disproving a fact in issue; it...
289. oath of allegiance noun: An oath whereby a subject or citizen acknowledges a duty of allegiance and swears loyalty to a monarch or a country.
290. oath of calumny noun: A method for the prevention of calumnious and unnecessary suits, by which both parties at the beginning of a cause swear, either by themselves or their...
291. oath of office noun: An oath taken before officially taking office.
292. oath-ring noun: A ring (particularly an arm ring) on which oaths are sworn.
293. oathable adjective: Capable of having an oath administered to one: fit to be sworn.
294. oathbound adjective: Bound by an oath.
295. oathbreach noun /ˈoʊθbɹiːt͡ʃ/: Breach or breaking of an oath; perjury.
296. oathbreaker noun: Someone who breaks an oath; a perjurer.
297. oathbreaking noun: The violation of an oath; perjury.
298. oathful adjective: Inclined to swear oaths, or curse.
299. oathless adjective: Without an oath or oaths.
300. oathlet noun: A minced oath.

Part 2 · English words: O

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under O: 20,049 words, in 67 parts.