(v) write quickly, Syn. toss off, scratch off, fling off, knock off, Example:She dashed off a note to her husband saying she would not be home for supper; He scratched off a thank-you note to the hostess
(v) get rid of (someone who may be a threat) by killing, Syn. neutralise, waste, do in, liquidate, knock off, Example:The mafia liquidated the informer; the double agent was neutralized