English Words: O
15,494 words · Page 80 of 310
Paralichthys olivaceus, a temperate marine species of large-tooth flounder native to the north-western Pacific Ocean.
A vegetable oil, pressed from olives, and used in cooking and as a salad dressing; it is high in unsaturated fatty acids.
Any of the birds in the genus Nesocharis or Delacourella, found in western and central Africa.
Characteristic of the eponymous character in Dickens' novel Oliver Twist (1837–9).
A white crystalline substance, obtained from an exudation from the olive, and having a bittersweet taste and acid properties.
Any of a group of olive green magnesium-iron silicate minerals that crystallize in the orthorhombic system.
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 80. 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.