big1 (big), adj., big•ger, big•gest, adv., n. adj. large, as in size, height, width, or amount: a big house; a big quantity. of major concern, importance, gravity, or the like: a big problem. outstanding for a specified quality: a big liar; a big success. important, as in influence, standing, or wealth: a big man in his field. grown-up; mature: big enough to know better. elder: my big …
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