English Words: O
15,494 words · Page 296 of 310
A board game of the mancala family which originated in Africa, and is reputedly the oldest game in the world.
To be under an obligation to give something back to someone or to perform some action for someone.
For it to be necessary for one (to do something) in order to advance one's one interests; to deserve.
Of or relating to Robert Owen (1771–1858), Welsh social reformer and one of the founders of utopian socialism and the cooperative movement.
An isometric-hexoctahedral black mineral containing barium, copper, iron, lead, nickel, and sulfur.
Any of various birds of prey of the order Strigiformes, families Strigidae and Tytonidae, that are primarily nocturnal and have forward-looking, binocular vision, limited eye movement, and good hearing.
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 296. 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.