meantime

Universal Words noun, adverb noun IDIOMS in the meantime in the period of time between two times or two events SYNMEANWHILE: My first novel was rejected by six publishers. In the meantime I had written a play. * The next programme starts in five minutes; in the meantime, here's some music. adverb (informal) = MEANWHILE: I'll contact them soon. Meantime don't tell them I'm back.