WISE

up (to) phrasal [verb] [I; T] [esp. US] [informal]If someone wises up to an unpleasant situation or a fact, they start to understand the truth, although it is difficult or unpleasant to accept.Come on, wise up, Frank, life isn't like that and you should know it!She hasn't yet wised up to the fact that her boyfriend is not all that he pretends to be.