Definition of if noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ɪf//
; NAmE NAmE//ɪf//
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(informal) a situation that is not certain If he wins—and it's a big if—he'll be the first Englishman to win for fifty years. There are still a lot of ifs and buts before everything's settled. Word OriginOld English gif, of Germanic origin; related to Dutch of and German ob.
See the Oxford Advanced American Dictionary entry: if