overwordExplorer
ENGLISH · A WORD WITH POSSIBILITIES

oo.

(Ω, ω) The Greek letter omega.

2 characters1 syllables approx.English language

Meaning & usage

noun
  1. (Ω, ω) The Greek letter omega.

    obsolete
Where this word comes from

Representation of a long-o sound.

noun/ˈəʊ.əʊ/UK/ˈoʊ.oʊ/US
  1. Any of four Hawaiian birds of the genus Moho, formerly classed with the honeyeaters and now believed to be extinct.

Where this word comes from

From Hawaiian ʻōʻō, resembling its call.

intj/uː/
  1. Alternative form of ooh.

    alt-of · alternative
Where this word comes from

See ooh.

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oo has 2 characters. Say it out loud, try it alongside a description of your project, and see whether its meaning fits what you want to create.

oo studiooo workshello, oo

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.