o'

enUK

o'

O0000850 (ə)prep. Informal Of: lots o' luck; top o' the morning.
[Middle English o, a, shortening of of; see of.]

o'

(ə) prepinformal or archaic shortened form of of: a cup o' tea.

O, o

(oʊ)

n., pl. O's Os, o's os oes. 1. the 15th letter of the English alphabet, a vowel. 2. any spoken sound represented by this letter. 3. something shaped like an O. 4. a written or printed representation of the letter O or o.

O

(oʊ)

interj., n., pl. O's. interj. 1. (used before a name in direct address, esp. in solemn or poetic language, to lend earnestness to an appeal): Hear, O Israel! 2. (used as an expression of surprise, pain, annoyance, longing, gladness, etc.) n. 3. the exclamation “O.” [1125–75; Middle English < Old French < Latin ō]

O

1. Old. 2. Gram. object.

O


Symbol. 1. the 15th in order or in a series. 2. the Arabic numeral; zero; cipher. 3. a major blood group. Compare ABO system. 4. oxygen.

o'


(ə, ō),
prep. 1. of: o'clock; will-o'-the-wisp. 2. Chiefly Dial. on. [Middle English; by shortening.]

O'

a prefix meaning “descendant,” in Irish family names: O'Brien; O'Connor. [representing Irish ó descendant, Old Irish au]

o-1

, Chem. ortho-.

o-2

, var. of ob- before m: omission.

o-3

, var. of oo-: oidium.

-o-

the typical ending of the first element of compounds of Greek origin, used regularly in forming new compounds with elements of Greek origin and often used in English as a connective irrespective of etymology: Franco-Italian; geography; seriocomic; speedometer. Compare -i-. [Middle English (< Old French) < Latin < Greek]

-o

1. a suffix occurring as the final element in informal shortenings of nouns (ammo; combo; promo); -o also forms nouns, usu. derogatory, for persons or things exemplifying or associated with that specified by the base noun or adjective (pinko; weirdo; wino). 2. a suffix occurring in informal noun or adjective derivatives, usu. grammatically isolated, as in address: kiddo; neato; righto.

O.

1. pint. [< Latin octārius] 2. October. 3. Ohio.

o.

1. ocean. 2. pint. [< Latin octārius] 3. octavo. 4. off. 5. old. 6. only. 7. order. 8. out.