B1 [I or T] to (cause someone or something to) stop doing a particular activity or stop being active for a period of time in order to relax and get back your strength: The doctor told him that he should rest for a few days. He looked away from the computer screen to rest his eyes. She promised that she would not rest (= would not stop looking) until the murderer of her son was caught and imprisoned. → See also rest upPassive and not working be resting informal › to be an actor who does not have any work: Over 90 percent of professional actors are resting at any given time.Employment status and types of workActing, rehearsing and performing I rest my case (also my case rests) legal › said by lawyers in a law court when they have finished the explanation of their caseLawyers and legal officials