English Words: O

1,431 words · Page 17 of 29

Orellananame

The river Amazon.

Orenname

A male given name from Hebrew, probably from the Bible (1 Chronicles 2:25).

Oreonoun

A cookie made of two wafers joined with a sugary filling, particularly a Nabisco cookie with two alkalized cocoa-powder wafers around a white creme filling.

oresnoun

plural of ore

Orestesname

The son of Agamemnon and Clytemnestra, who killed his mother, avenging his father's death, and was then pursued by the Furies.

orfnoun

An exanthemous disease caused by a parapox virus, occurring primarily in sheep and goats but also capable of infecting humans.

Orfordname

A number of places:

orgnoun

Clipping of organization.

organnoun

The larger part of an organism, composed of tissues that perform similar functions.

organellenoun

A specialized structure found inside cells that carries out a specific life process (e.g. ribosomes, vacuoles).

organicadj

Pertaining to or derived from living organisms.

organicallyadv

In an organic manner.

organisationnoun

Non-Oxford British English and Australian standard spelling of organization.

organisationaladj

Alternative spelling of organizational.

organiseverb

Non-Oxford British standard spelling of organize.

organisedadj

Alternative spelling of organized.

organisernoun

Non-Oxford British English standard spelling of organizer.

organismnoun

A discrete and complete living thing, such as animal, plant, fungus or microorganism.

organistnoun

A musician who plays the organ.

organizationnoun

The quality of being organized.

organizationaladj

Of, relating to, or produced by an organization.

organizationallyadv

In an organizational manner.

organizationsnoun

plural of organization

organizeverb

To arrange in working order.

organizedadj

Having been organized; in good order.

organizernoun

A person who arranges the details of a public event.

organometallicadj

of, or relating to organic compounds having a metal atom directly bonded to a carbon atom

organsnoun

plural of organ

organzanoun

A thin, stiff, sheer fabric that is made from silk or a synthetic yarn, which resembles organdy, and is used in dressmaking.

orgasmnoun

A spasm or sudden contraction.

orgasmicadj

Of or relating to orgasms.

orgynoun

A secret rite or ceremony, typically involving riotous and dissolute behavior, including dancing, drunkenness and indiscriminate sexual activity, undertaken in honor of various pagan gods or goddesses (such as Attis, Bacchus, Ceres, Dionysus, Osiris, etc).

Orinoun

An individual's spiritual intuition and destiny, according to Yoruba beliefs.

orielnoun

A large polygonal recess in a building, such as a bay window, forming a protrusion on the outer wall.

orientname

Usually preceded by the: alternative letter-case form of Orient (“a region or a part of the world to the east of a certain place; countries of Asia, the East (especially East Asia)”)

orientaladj

Alternative letter-case form of Oriental.

orientalismnoun

The tendency to represent eastern subjects, to assume stylistical characteristics original of the East.

orientalistadj

Of the West, to take in aspects of the East; pertaining to orientalism

orientationnoun

The determination of the relative position of something or someone.

orientedadj

Having a specific orientation (positioning or direction).

orienteeringnoun

The act of racing across unfamiliar place using a map and compass.

orificenoun

A mouth or aperture, such as of a tube, pipe, etc.; an opening.

origaminoun

The Japanese art of paper folding.

Origenname

A male given name from Ancient Greek, of historical usage, notably borne by Origen of Alexandria, an early Church Father.

originnoun

The beginning of something.

originaladj

Relating to the origin or beginning; preceding all others.

originalitynoun

The quality of being original or novel.

originallyadv

As it was in the beginning; at first.

originateverb

To cause (someone or something) to be; to bring (someone or something) into existence; to produce or initiate a person or thing.

originationnoun

The process of bringing something into existence.

Spelling & Dictionary Insight

The English alphabetical index for the letter O contains 1,431 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 29 pages, and you are currently viewing page 17. 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.