English Words: O

15,494 words · Page 61 of 310

oilseednoun

The seed of any of several plants which are used commercially as a source of vegetable oil.

oilskinnoun

Cloth made from cotton and treated with oil and pigment to make it waterproof.

oilskinnedadj

Wearing an oilskin.

oilskinsnoun

A waterproof garment, made from oilskin, used especially at sea.

oilsmokenoun

Smoke from burning oil; especially, such smoke that is thick and black.

oilspotnoun

Alternative form of oil spot.

oilstonenoun

A type of stone used for sharpening objects such as knives and razorblades.

oilstovenoun

A stove or heater that burns kerosene.

oiltightadj

So tightly made that oil cannot enter or escape.

oiltightnessnoun

The quality of being oiltight.

oilwaynoun

An aperture or conduit for oil.

oilworksnoun

A factory producing oil (whether petroleum, oil shale, or vegetable oils).

oilyadj

Covered with or containing oil.

oily ragnoun

An employee in a menial, unskilled role in a factory or workshop.

oilyishadj

Somewhat oily.

oilynessnoun

Alternative spelling of oiliness.

Oinamname

A Meitei surname from Manipuri

oinkintj

Representing the grunting sound made by a pig.

oinkernoun

Someone or something that oinks.

oinochoaenoun

plural of oinochoe

oinochoainoun

plural of oinochoe

oinochoenoun

Alternative form of oenochoe.

oinokhoainoun

plural of oinokhoe

oinokhoenoun

Alternative form of oenochoe.

ointverb

To anoint.

ointmentnoun

A viscous preparation of oils and/or fats, usually containing medication, used as a treatment or as an emollient.

ointmentlikeadj

Resembling or characteristic of ointment.

oipenoun

An Ancient Egyptian dry measure of volume equivalent to 4 heqats (about 19.2 litres or 0.54 bushels).

oirannoun

A high-status courtesan in Japan.

Oireachtasname

The parliament of Ireland.

Oirishadj

Pronunciation spelling of Irish

Oirschotname

A village and municipality of North Brabant, Netherlands.

OISnoun

Initialism of officer-involved shooting.

Oiscname

A king of Kent.

Oiscingnoun

A descendant of Oisc of Kent.

OISEname

Acronym of Ontario Institute for Studies in Education, of the University of Toronto.

Oishiname

A surname from Japanese.

oisternoun

Obsolete spelling of oyster.

Oisterwijkname

A village and municipality of North Brabant, Netherlands.

Oitaname

The capital city of Ōita Prefecture, Japan.

oitavanoun

A traditional Portuguese unit of dry measure, equivalent to 1.6–2.4 liters in different 19th-century contexts.

oiternoun

Deliberate misspelling of water.

oiticicanoun

The tree Licania rigida, endemic to Brazil and Puerto Rico.

Oituzname

A village and commune of Bacău County, Romania.

Oizysname

The (female) personification of pain and distress; said by Hesiod is his Theogony to be the offspring of Nyx (Night) and produced without the assistance of a father; identified with the Roman Miseria (Misery).

OJnoun

Initialism of orange juice.

Ojainame

A city in Ventura County, California, United States.

ojeknoun

A motorcycle taxi in Indonesia.

ojhanoun

A sorcerer or folk healer in parts of India and Nepal.

Ojibwaynoun

Archaic spelling of Ojibwe.

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 61. 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.