English Words: O
15,494 words · Page 196 of 310
Otological syphilis: the otological component or manifestations of syphilis; syphilis's effects on the ears. In modern nosology not entirely distinct from the rest of neurosyphilis; sometimes formerly differentiated as, or in parallel with, parasyphilis.
Damage to the ear, specifically the cochlea and sometimes the vestibular system, by a toxin.
A person who is unable to feel a connection to social groups or collectives, as distinct from both an introvert and an extrovert.
A whitefish in species Coregonus artedi, found in lakes of the Great Lakes region of North America.
A First Nation group, now amalgamated with the Ahousaht, based on the west coast of Vancouver Island in British Columbia, Canada.
In Old Japanese, one of two sets of vowels of uncertain pronunciation which fell together in modern Japanese.
An arrangement of stanzas of eight lines in heroic verse, with three rhymes, the first six lines rhyming alternately and the last two forming a couplet (ab ab ab cc).
The biprovincial metropolitan region containing Ottawa, Ontario and Gatineau, Quebec in Canada.
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 196. 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.