English Words: O

15,494 words · Page 174 of 310

Ortmannname

A surname from German.

Ortnername

A surname from German.

Ortner's syndromenoun

A rare cardiovocal syndrome involving recurrent laryngeal nerve palsy from cardiovascular disease.

ortolannoun

A small European migratory bunting (Emberiza hortulana), once eaten whole as a delicacy.

Ortonname

A surname.

Ortonesqueadj

In a style reminiscent of John Kingsley "Joe" Orton (1933-1967), English playwright who wrote scandalous black comedies.

Ortonianadj

Of or relating to Joe Orton (1933–1967), English playwright and author.

Ortonvillename

An unincorporated community in Ventura County, California, United States.

Ortsgruppenleiternoun

a Nazi party political rank and title which existed between 1930 and 1945.

Ortweinname

A surname from German.

ortygannoun

Any of various buttonquails.

orujonoun

A brandy from northern Spain, made from grapes.

Orunmilaname

A male given name from Yoruba.

orvalnoun

A sage, of species Salvia viridis.

orvetnoun

The slowworm.

orvietannoun

A medicinal preparation made from herbs, wine and honey, thought to be an antidote for any poison.

Orvietoname

A town in the province of Terni, Umbria, Italy.

Orvillename

A male given name originating as a coinage.

Orwellname

A village and civil parish in South Cambridgeshire district, Cambridgeshire, England (OS grid ref TL3650).

Orwellesqueadj

Synonym of Orwellian.

Orwellianadj

Resembling the totalitarian political methods decried in the works of writer George Orwell, particularly in the dystopian novel Nineteen Eighty-Four; characterized by use of misleading terminology, propaganda, censorship, surveillance and repression.

Orwellianismnoun

Orwellian systems or methods generally; totalitarian propaganda, surveillance, repression, etc.

Orwellianlyadv

In an Orwellian manner.

Orwellismnoun

Synonym of Orwellianism.

Orwollname

A surname.

orxatanoun

Alternative form of horchata.

orycterenoun

The aardvark.

orycteropenoun

Alternative form of oryctere.

orycticsnoun

The branch of geology relating to fossils.

oryctognosticallyadv

In a manner relating to oryctognosy.

oryctognosynoun

Knowledge about things dug up, especially what is now considered mineralogy.

oryctographynoun

The description of fossils.

oryctologicadj

Relating to oryctology.

oryctologicaladj

Of or pertaining to oryctology.

oryctologistnoun

Someone versed in oryctology.

oryctologynoun

The study of things dug out of the earth, including minerals and fossils.

orygesnoun

plural of oryx

Oryolname

An oblast of Russia.

oryxnoun

Any of several antelopes, of the genus Oryx, native to Africa, which have long, straight horns

oryzacystatinnoun

A cysteine proteinase inhibitor of rice.

oryzalexinnoun

Any of a particular class of diterpene phytoalexins, typically obtained from rice leaves

oryzalinnoun

A selective herbicide used to control annual grasses etc. in food crops

oryzanolnoun

An antioxidant found in rice bran oil.

oryzastrobinnoun

A particular strobilurin fungicide.

oryzinnoun

A predominant extracellular alkaline endopeptidase of the mold Aspergillus oryzae.

oryzivorousadj

Having a diet rich in rice.

oryzoidadj

Of or pertaining to rice-like plants of the Oryzoideae.

Orzechname

A surname from Polish.

Orzechowskiname

A surname from Polish.

Orzelname

A surname from Polish.

Spelling & Dictionary Insight

The English alphabetical index for the letter O contains 15,494 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 310 pages, and you are currently viewing page 174. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "O" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.