English Words: O

15,494 words · Page 45 of 310

oestrinnoun

An oestrogen, specifically oestrone.

oestriolnoun

Alternative spelling of estriol.

oestrogenicallyadv

Alternative form of estrogenically.

oestrogenismnoun

Alternative form of estrogenism.

oestrogenizedadj

Alternative form of estrogenized.

oestronenoun

Alternative spelling of estrone.

oestrumnoun

A biting insect; a gadfly or botfly.

oestrusnoun

A biting fly of the genus Oestrus; a botfly.

oesypumnoun

Refuse from wool.

Oetaeaname

A small upland district located south of Thessaly (of which it was sometimes considered a part). It was closely linked with the district of Aeniania, sharing a location in the valley of the Spercheios.

Oetkenname

A surname from German.

Oettingname

A surname from German.

oeufnoun

An egg.

oeuf en cocottenoun

A dish consisting of eggs cooked in butter in individual cocottes or ramekins.

oeuvrenoun

A work of art, music or literature.

ofprep

Expressing distance or motion.

of aphrase

on every; in the (followed by a noun indicating a certain time)

of a certain ageprep_phrase

Middle-aged or older.

of a kindprep_phrase

Of the same type or character.

of a lifetimeprep_phrase

That is the best one can expect to ever encounter.

of a mindprep

Alternative form of of one mind.

of a pieceprep_phrase

Of the same kind.

of a piece withphrase

Consistent with.

of a suddenprep_phrase

Alternative form of all of a sudden.

of a suretyprep_phrase

For certain.

of ageprep_phrase

Old enough to be considered an adult (in law, or by society generally).

of alladv

Used as an intensifier with superlative forms of adjectives.

of all lovesprep_phrase

For the sake of all love; by all means.

of all peopleprep_phrase

Especially; more than other people

of all placesprep_phrase

Surprisingly.

of all thingsprep_phrase

Especially; more than other things.

of all timeprep_phrase

Ever.

of anphrase

Having the same.

of blessed memoryprep_phrase

Honorific epithet used parenthetically to mark a beloved person as being deceased.

of choiceprep_phrase

preferred above others.

of coloradj

Nonwhite; of a race other than white, for example black.

of colouradj

Alternative spelling of of color.

of consequenceprep_phrase

consequential.

of courseadj

That is part of ordinary behaviour or custom; customary, natural.

of course my horseintj

Synonym of of course.

of even dateprep_phrase

Having the same date.

of its kindphrase

Of the same type.

of Koranic proportionsadj

Of biblical proportions: immense.

of lateprep_phrase

In the recent past; recently; lately.

of meansprep_phrase

Possessing significant wealth, especially as suggesting social standing.

of mineprep_phrase

Belonging to me.

of modest meansprep_phrase

Having little money, or limited financial resources.

of newadv

Once again; anew.

of no availadj

Ineffective; having no beneficial result.

of noteprep_phrase

worthy of being remembered mentally or in writing.

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 45. 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.