interim, meantime, meanwhile, lag -- (the time between one event, process, or period and another; "meanwhile the socialists are running the government")
Overview of adv meanwhile
The adv meanwhile has 2 senses
meanwhile -- (at the same time but in another place; "meanwhile, back at the ranch...")
meanwhile, meantime, in the meantime -- (during the intervening time; "meanwhile I will not think about the problem"; "meantime he was attentive to his other interests"; "in the meantime the police were notified")