v. 1 give up or over, yield, surrender, leave, cede, let go, deliver (up), turn over, relinquish I can see no reason why we should abandon the house to thieves and vandals 2 depart from, leave, desert, quit, go away from The order was given to abandon ship 3 desert, forsake, jilt, walk out on He even abandoned his fiancée 4 give up, renounce; discontinue, forgo, drop, desist, abstain from She abandoned cigarettes and whisky after the doctor's warning
n. 5 recklessness, intemperance, wantonness, lack of restraint, unrestraint He behaved with wild abandon after he received the inheritance