English Words: O
15,494 words · Page 119 of 310
An object found in a very unusual or apparently impossible archaeological context (like the Coso sparkplug found in an allegedly 500,000-year-old geode) which would challenge conventional historiography and chronology if authentic.
The cannibalization of subordinate eggs within a homogeneous population or the uterus; particularly as it relates to certain insect and aquatic species.
The macrosporangium or case for the larger kind of spore in heterosporous flowerless plants.
The Solar System's Oort cloud, extending from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets around the Solar System.
A wooden horned mask used for folkloric and magical purposes. Possibly also the unknown creature upon which the mask was based.
A large nonmotile egg cell, especially of an alga or fungus, formed in an oogonium and ready for fertilization.
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 119. 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.