Definition/Meaning of oo

• English - Noun: oo (plural oos) (obsolete) (Ω, ω) The Greek letter omega . c. 1500, The Assembly of Gods, published 1158: Then came ther downe goodly ladyes tweyne […] And seyde, the gret Alpha & Oo most souereyne […] had hem thedyr sent. oo (plural oos) Any of four Hawaiian birds of the genus Moho , formerly classed with the honeyeater s and now believed to be extinct. 1898, Liliuokalani, Hawaii's Story by…
• English - Interjection: oo (alternative) Alternative form of ooh .
• English - Etymology: Etymology 1. Representation of a long-o sound. Etymology 2. From Hawaiian ʻōʻō , resembling its call. Etymology 3. See ooh .
• English - Pronunciation: (UK) IPA: /ˈəʊ.əʊ/ (US) IPA: /ˈoʊ.oʊ/ IPA: /uː/
• English - Synonyms: moho hoohoo