English Words: O
15,494 words · Page 181 of 310
The use of osmotically active substances to reduce the volume of intracranial contents.
A civil parish (served by Egton with Newland, Mansriggs and Osmotherley Parish Council) north of Ulverston, Westmorland and Furness, Cumbria, England, previously in South Lakeland district.
The deleterious effect of injection of a highly concentrated solution (typically, a contrast medium)
A throw in which (right-handed version) tori steps next to uke with his left leg and reaps uke's right leg (at the back of the thigh) with his right leg.
A bird of prey of genus Pandion that feeds on fish and has white underparts and long, narrow wings each ending in four finger-like extensions.
An ancient Syriac kingdom, Roman province and historical region in northwestern Mesopotamia in modern Turkey and Syria, which enjoyed semi-autonomy to complete independence from the years of 132 B.C.E. to 244 C.E..
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 181. 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.