English Words: O
15,494 words · Page 25 of 310
A characteristically Oceanian cultural feature, such as a belief, custom or linguistic feature.
A supposed chemical element, thought to be the one with atomic number 72 (now known as hafnium), but later identified as a mixture of aluminium, iron, and titanium.
Personification of vast waters or the world ocean. He was the first-born of the Titans, son of Uranus and Gaia, the god Ωκεανός Ποταμός (Ōkeanós Potamós, “River Ocean”) that encircled the earth. With his sister-wife, Tethys, he fathered all rivers and the Oceanids.
The development of eye-like markings, such as those on the wing of a butterfly or tail of a peacock.
a cellular structure found in unicellular microorganisms that is analogous in structure and function to eyes, which focus, process and detect light
An American feline carnivore (Leopardus pardalis, syn. Felis pardalis) covered with blackish ocellated spots and blotches which are variously arranged.
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 25. 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.