adj. 25B6; verb
he quit the office at 12.30 : LEAVE, vacate, exit, depart from, withdraw from; abandon, desert.
(informal) he's decided to quit his job : RESIGN FROM, leave, give up, hand in one's notice, stand down from, relinquish, vacate, walk out on, retire from; informal chuck, pack in.
(informal) quit living in the past : GIVE UP, stop, cease, discontinue, drop, break off, abandon, abstain from, desist from, refrain from, avoid, forgo; informal pack (it) in, leave off.