English Words: O
15,494 words · Page 58 of 310
A small red or yellow berry growing on the shrub Vaccinium reticulatum of volcanic parts of the Hawaiian islands of Hawaii and Maui, or the shrub itself.
The berry of Vaccinium reticulatum, native to Hawaii, similar in taste to the cranberry.
A major river in the United States, flowing 981 miles from the confluence of the Allegheny and Monongahela at Pittsburgh into the Mississippi at Cairo, Illinois.
A pueblo and census-designated place in Rio Arriba County, New Mexico, United States.
A member of an indigenous population native to the San Francisco and Monterey Bay Areas, California.
In the International System of Units, the derived unit of electrical resistance; the electrical resistance of a device across which a potential difference of one volt causes a current of one ampere.
Ohm's observation that the direct current flowing in an electrical circuit consisting only of resistances is directly proportional to the voltage applied.
By means of ohmic heating, the process by which the passage of an electric current through a conductor releases heat.
A monoclinic-prismatic light pink mineral containing hydrogen, iron, oxygen, silicon, strontium, and titanium.
A progressive condition with a combination of severe epilepsy and cerebral palsy. It is characterised by severe physical and mental retardation and partial seizures.
A kind of rural commune established in New Zealand under a government scheme of the mid-1970s.
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 58. 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.