• to break off, to can, to cease, to chuck, to chuck up, to discard, to discontinue, to dismiss, to drop, to give over, to give up, to knock off, to lay aside, to lay by, to lay off, to leave off, to quit, quit, to relinquish, to sign off, to stop, to switch off, to take a pull
• cruise ship, pleasure-boat
• calamary, cuttlefish, polyp, sepia, squid
• reactive, reflective, reflexive, retroactive
• backlash, reaction, reactiveness, repercussion