OK

OK

☆ OK¹ or O.K. [ō kā′ ]

Informal

adj., adv., interj.

[orig. U.S. colloq.: first known use (March 23, 1839) by C. G. Greene, editor, in the Boston Morning Post, as if abbrev. for “oll korrect,” facetious misspelling of all correct; ? altered < Scot dial. och aye, ah yes, oh yes < Gael och, ah, oh + AYE²]

all right; correct(ly)

n.

pl. OK's or O.K.'s

approval; endorsement

vt.

OK'd or O.K.'d, OK'ing or O.K.'ing

to put an OK on; approve; endorse

OK²

abbrev.

Oklahoma