O
UK /əʊ/ · US /oʊ/ noun, numeral, particle, proper noun, adjective
- noun Something shaped like the letter O.
- noun (uncountable) A blood type that lacks A or B antigens and may only receive transfusions of similar type O blood, but may donate to all (neglecting Rh factor). Synonym: universal donor.
- numeral The fifteenth numeral symbol of the English alphabet, called o and written in the Latin script.
- particle The vocative particle, used for direct address.
- noun An utterance of the vocative O.
- noun (printing) American Library Association abbreviation of octavo, a book size (20-25 cm).
- noun (soccer) Someone associated with Leyton Orient Football Club, as a player, coach, supporter etc.
- noun (cricket) The number of overs bowled.
- noun (slang) Orgasm.
- noun (slang, uncountable) Opium.
- proper noun A surname from Korean.
- proper noun A surname from Mandarin Chinese.
- adjective (Singapore, colloquial, used as a modifier after kopi (“coffee”) or teh (“tea”)) With sugar and no condensed milk added.
- noun The name of the Latin script letter O/o.
- noun A zero (used in reading out numbers). “It is currently two-o-five in the afternoon (2:05 PM).”
Synonyms
Etymology
From Middle English O, o, from Old English o, from Latin o and Ancient Greek ὦ (ô, interjection). Featured prominently in William Tyndale's 1525 translation of the New Testament.
Abbreviation.
Korean 오(伍) (O) or 오(吳) (O). Doublet of Wu.
From Mandarin 鄂 (È) Wade–Giles romanization: O⁴.
Webster’s 1913
- adjective One. [Obs.] Chaucer. "Alle thre but o God." Piers Plowman.
- interjection An exclamation used in calling or directly addressing a person or personified object; also, as an emotional or impassioned exclamation expressing pain, grief, surprise, desire, fear, etc. For ever, O Lord, thy word is settled in heaven. Ps. cxix. 89.
Etymology [See One.]
Etymology [corrupted fr. F. O Dieu! or It. O Dio! O God! O Dio mio! O my God! Wyman]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “O”, CC BY-SA 4.0. Details