English Words: O
15,494 words · Page 118 of 310
A derogatory name for Oakland, California, United States, with reference to its African-American population.
An extinct marsupial, the desert rat kangaroo (Caloprymnus campestris), that lived in a sand-ridge and gibber-plain habitat in south-western Queensland and north-eastern Australia.
A rock consisting of spherical grains within a mineral cortex accreted around a nucleus, often of quartz grains.
A spherical granule of which oolite is composed, formed by concentric accretion of thin layers of a mineral (usually calcium carbonate (limestone) but also others such as dolomite and silica) around a core; an ooid.
A partially fermented tea, often roasted, which combines the characteristics of green tea and black tea.
A genre of Germanic music (especially Bavarian music) typically involving brass instruments.
Any of the fictional pygmies who manufacture candy in Roald Dahl's Charlie and the Chocolate Factory.
Any of a number of filamentous unicellular protists of the class Oomycetes; the water molds.
Any of a group of filamentous protists variously classified as the phylum Oomycota or the class Oomycetes in a more broadly circumscribed phylum.
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 118. 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.