Synonyms for Knock Off (same or very similar meaning)
WordNet sense 1 (cut the price of):
shaveWordNet sense 2 (take by theft):
cop, hook, snitch, thieve, glomWordNet sense 3 (write quickly):
toss off, dash off, fling off, scratch offWordNet sense 4 (get rid of (someone who may be a threat) by killing):
liquidate, neutralize, waste, neutralise, do inWordNet sense 5 (stop pursuing or acting):
dropFrom the ODE community, based on WordNetadd/edit