English Words: O

15,494 words · Page 189 of 310

osteotomizedadj

Modified by osteotomy

osteotomynoun

The surgical procedure of cutting a bone. This is often performed to either lengthen, shorten, or straighten a bone.

osteotoxicadj

toxic to bone tissue

osteotoxicitynoun

The condition of being osteotoxic

osteotripsynoun

The crushing of a bone.

osteotropicadj

Describing any drug etc. that is attracted to, and targets bone

osteotropismnoun

The condition of being osteotropic

osteozecathianoun

The process in which the body moves calcium from one bone to another.

Ostername

A surname.

Ostergaardname

A surname.

osterianoun

A small local restaurant in (usually rural) Italy.

Osterkampname

A surname from German.

Osterleyname

An affluent suburb in the historic parish of Isleworth in borough of Hounslow, Greater London, England (OS grid ref TQ1577).

Ostheimname

Former name of Boikivske: a rural settlement, the administrative centre of Boikivske settlement hromada, Kalmiuske Raion, Donetsk Oblast, Ukraine; known by this name until February 1935.

osthyanoun

a labial consonant

Ostianame

A port and town on the Tiber in Italia, Roman Empire, the harbour of ancient Rome.

ostialadj

Relating to any orifice, or ostium.

ostiallyadv

Within an orifice or ostium

Ostianadj

Of the ancient Italian town of Ostia.

ostiariatenoun

The minor order of ostiaries, or porters.

ostiariusnoun

An ostiary; a doorman; a porter.

ostiarynoun

The mouth of a river; an estuary.

ostikannoun

Any of the Arab governors of Armenia.

ostikanatenoun

The region governed by an ostikan.

ostinatinoun

Plural of ostinato.

ostinatonoun

A piece of melody, a chord progression, or a bass figure that is repeated over and over as a musical accompaniment.

ostiolaradj

Of or pertaining to the ostiole.

ostiolenoun

A small hole or opening through which certain fungi release their mature spores.

ostiomeataladj

Relating to, or connecting the ostium and the meatus

ostiumnoun

A small opening or orifice, as in a body organ or passage.

ostkakanoun

A Swedish dessert made from curdled milk.

ostlernoun

A person employed at an inn, hostelry, or stable to look after horses; a groom.

ostleressnoun

A female ostler.

Ostmannoun

One of the Danish settlers in Ireland.

ostmarknoun

The currency unit of the former German Democratic Republic (aka GDR, DDR, East Germany) until 1990, abbreviated DDM.

Ostmennoun

plural of Ostman

ostomatenoun

A person who has had an ostomy, a surgical operation to create an opening in the body for the discharge of body wastes.

ostosisnoun

Synonym of osteosis.

OSTPname

Initialism of Office of Science and Technology Policy.

Ostpolitikname

The policies of West Germany under Chancellor Willy Brandt, seeking rapprochement with East Germany and the Soviet Union.

ostraceannoun

Any bivalve of the family Ostreidae; an oyster.

ostraceousadj

Resembling or characteristic of an oyster.

ostracisationnoun

Alternative form of ostracization.

ostraciseverb

Non-Oxford British English standard spelling of ostracize.

ostracismnoun

In ancient Athens (and some other cities), the temporary banishment by popular vote of a citizen considered dangerous to the state.

ostracitoxinnoun

A toxin produced by the boxfish.

ostracizableadj

Capable of being ostracized.

ostracizationnoun

The state of being ostracized.

ostracizeverb

To ban a person from a city for five or ten years through the procedure of ostracism.

ostracizernoun

One who ostracizes.

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 189. 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.