English Words: O
15,494 words · Page 72 of 310
Of or pertaining to both olfactory and motor activity, as for example where thinking about an odor triggers sniffing.
A mental disorder in which the patient believes that they are emitting abnormal and offensive body odors.
A trigonal-hexagonal scalenohedral mineral containing barium, oxygen, phosphorus, sodium, and strontium.
A village in Borova settlement hromada, Izium Raion, Kharkiv Oblast, Ukraine, founded in 1685.
A gum resin from trees of the genus Boswellia, formerly used as a medicine and now mainly as incense.
An essential oil, principally a mixture of diterpenes, obtained by the distillation of olibanum.
The ship of characters Oliver Queen (Green Arrow) and Felicity Smoak from the television series Arrow.
The current geological epoch, understood as characterised by the destructive effects of the behaviour of a small group of wealthy and powerful people.
A regime of accretion of material in a protoplanetary disk where only the most massive objects can continue to grow.
Conversion of a political system to an oligarchy; (countable) an instance of this.
A government run by and for only a few, often the aristocracy, the wealthy, or their friends and associates.
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 72. 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.