English Words: O
15,494 words · Page 57 of 310
Some unspecified hour in the early morning (implies an unpleasant time to be awake)
Some unspecified hour in the early morning (implying an unpleasant time to be awake).
A game or time period in which a player did not manage to sustain a particular attainment.
An expression of delight and joy, or, sarcastically, dismay, resignation, frustration, or annoyance.
An expression of surprise, astonishment, shock, dismay, supplication, or consternation.
An expression of mild disappointment or resignation: too bad; it's a pity; what can you do; it is what it is.
An ultra-high-energy cosmic ray detected in 1991, of uncertain nature, which exceeds the GZK limit; the highest energy particle ever discovered.
The Japanese custom of blackening the teeth with a solution of iron filings and vinegar, especially popular between the Heian and Edo periods, from the 10th century until the late 19th century.
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 57. 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.