English Words: O

15,494 words · Page 91 of 310

Omoticadj

Of or pertaining to a language family, often grouped into the Afroasiatic language family, spoken in southwestern Ethiopia, some of which use the Ge'ez alphabet, and which are fairly agglutinative, with complex tonal systems.

Omoticistnoun

A linguist who specialises in studying Omotic languages.

omphacineadj

Made from unripe olives.

omphacitenoun

Any of a range of green, monoclinic pyroxene minerals found in eclogites and similar rocks; they are solid solutions of jadeite and diopside.

omphaciticadj

Of or relating to omphacite.

omphacomelnoun

A form of mead made with verjuice.

omphal-prefix

Alternative form of omphalo- (before a vowel)

omphalectomynoun

The excision of the navel.

omphalicadj

Of or pertaining to the umbilicus, or navel.

omphalinoidadj

Describing any mushroom with decurrent gill attachment, a cartilaginous stem, a broad or depressed cap surface and lacking an annulus and volva.

omphalismnoun

A tendency to place the capital of a country at its geographical centre, or to increase the powers of central government at the expense of local government.

omphalitisnoun

inflammation or infection of the umbilicus

omphalo-prefix

Relating to the navel.

omphaloarteritisnoun

arteritis of the umbilicus

omphalocelenoun

A hernia of the navel.

omphalocentricadj

Overly introspective and inclined to navel-gazing

omphalodenoun

The central part of the hilum of a seed, through which the nutrient vessels pass into the raphe or chalaza.

omphaloidadj

Shaped like a navel.

omphalolithnoun

A periumbilical mass that may form due to the accumulation of sebum and keratin.

omphalomancynoun

Divination by means of a child's navel, to learn how many children the mother may have.

omphalomesaraicadj

Synonym of omphalomesenteric.

omphalomesentericadj

Of or pertaining to the umbilicus and mesentery.

omphalopagusnoun

Joined at the umbilicus.

omphalophlebitisnoun

inflammation of an umbilical vein

omphalophobianoun

Fear of navels.

omphalopsychicadj

Related to or characterised by navel-gazing (omphaloskepsis).

omphalopsychitenoun

A Hesychast.

omphalosnoun

An ancient religious stone artifact, or baetylus, used to denote the direction of the "center" of the world.

Omphalos hypothesisname

The proposition that God created the universe within the past few thousands of years but also introduced false evidence that the universe is of great age.

omphaloscopynoun

Navel-gazing; introversion.

omphaloskepsisnoun

The contemplation of or meditation upon one's navel; navel-gazing.

omphaloskepticnoun

One who contemplates or meditates upon one's navel; one who engages in omphaloscopy.

omphalotomynoun

The cutting of the umbilical cord.

Ompraretname

A surname from French.

omquædnoun

A line that is repeated in every stanza of a poem or ballad.

OMRnoun

Initialism of optical mark recognition.

omrahnoun

A noble of the Mughal Empire or other Muslim Indian state.

OMSnoun

Initialism of orbital manoeuvering system: NASA terminology for orbital maneuvering rockets.

Omskname

A city, the administrative center of Omsk Oblast, Russia, the seventh-largest in the country by population.

omulnoun

Any of the salmon-like fish of species Coregonus migratorius (syn. Coregonus autumnalis migratorius), native to Lake Baikal in Siberia

omum waternoun

A common domestic medicine in south India, made from the strong-smelling carminative seeds of ajwain.

Omuraname

A surname from Japanese.

Omura's whalenoun

Balaenoptera omurai, a species of rorqual.

omurambanoun

A watercourse, which may be dry much of the year, in the Kalahari Desert.

omuricenoun

A Japanese dish consisting of an egg omelette with rice mixed with ketchup in the center.

omutsunoun

A diaper.

omwesonoun

A traditional mancala game of Uganda.

oMZSnoun

Initialism of older mother's sister's son; male maternal cousin older than oneself.

Omāēqnomenēweqnaesenname

Synonym of Menominee (language).

onadj

In the state of being active, functioning or operating.

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 91. 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.