English Words: O

15,494 words · Page 100 of 310

on top ofprep

Atop.

on top of thatprep_phrase

Also, additionally, moreover.

on top of the worldprep_phrase

Delighted; ecstatic; exceptionally pleased, happy, or satisfied.

on trackprep_phrase

Proceeding as planned, as expected, or in a manner consistent with an established pattern.

on trendadj

Having characteristics which conform to current fashion trends.

on what scoreprep_phrase

For what reason? In regard to what?

on wheelsprep_phrase

To a large degree, excessively.

on your bikeintj

Go away.

on your horse, amigointj

How are you?

on your mark, get set, gophrase

A three-command start when racing

on'tcontraction

Contraction of on + it.

on-again, off-againadj

Intermittent; frequent but irregular.

on-brandadj

Serving the public image which a company seeks to associate with its product.

on-chainadj

Occurring, validated, and recorded on a blockchain.

on-loanedadj

lent or borrowed

on-messageadj

on message

on-offadj

That is either fully on or fully off, and is used to toggle a status between on and off; as in an on-off switch

on-premadj

Installed and run on computers on the premises of the organisation that uses it, and not elsewhere (such as in a server farm or in the cloud).

on-pressingadj

Of a group, crowd, army, etc., pressing forwards.

on-rampnoun

A segment of roadway that directs vehicular traffic from local roads onto a freeway.

on-roadverb

To travel in smooth terrain on a paved track.

on-roadernoun

A vehicle designed to be driven principally on normal roads; an on-road vehicle.

on-screenadv

Alternative form of onscreen.

on-slipnoun

A slip road by which traffic joins a major road such as a motorway.

on-the-go-nessnoun

The state or condition of being on the go.

on-the-jobadj

obtained whilst working

on-the-make-nessnoun

The state or quality of being on the make.

on-tradenoun

The sale of alcoholic drinks for consumption on the premises.

on-trainadj

Taking place on a train.

on-wikiadj

Found or taking place on a wiki.

Onaname

A surname from Spanish.

ona'ahnoun

The sin of knowingly selling goods for more than they are worth or buying them for less than they are worth.

onaccountaprep

Pronunciation spelling of on account of.

onaganoun

Longtail snapper (Etelis coruscans), a species of ray-finned fish.

onagernoun

The Asiatic wild ass or hemione (Equus hemionus), an animal of the horse family native to Asia; specifically, the Persian onager, Persian wild ass, or Persian zebra (Equus hemionus onager).

onagraceousadj

Of or relating to the family Onagraceae of flowering plants, including the fuchsia and the evening primrose.

onagradnoun

Any plant of the family Onagraceae

onaholenoun

An artificial vagina for use in masturbation.

Onamname

A harvest festival celebrated in Kerala, India.

Onanname

The second son of Judah.

onanismnoun

Masturbation.

onanistnoun

A person, especially a man, who masturbates.

onanisticadj

Of or pertaining to masturbation (onanism).

onanisticallyadv

In an onanistic manner.

onapristonenoun

A synthetic antiprogestogen used to combat prostate cancer.

onartuzumabnoun

A humanized monoclonal antibody designed to treat cancer.

Onatename

A surname.

onballadj

In the midfield positions.

onballernoun

Any of the three players (the ruckman, ruck rover, and rover) who usually follow the ball around the ground rather than occupying a fixed position.

onbeamadj

In line with excited parallel neurofibers.

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 100. 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.