Synonyms to knockout blow

crusher, KO, cheese grater, clincher, comminutor, conclusive argument, death stroke, deathblow, end-all, ender, final stroke, finisher, finishing stroke, floorer, granulator, grater, grinder, kayo, kayo punch, knockdown argument, knockout, kominuter, last dab, levigator, masher, mill, millstone, mortar and pestle, nutmeg grater, pestle, pulverizer, quern, quernstone, quietus, rock crusher, roller, settler, shredder, sockdolager, steamroller, stopper, triturator, coup de grace, trump, bane, death, death knell, doom, end, fate, lethal blow, Waterloo, beating, collapse, conquering, conquest, crash, de