bump

[1]	knock (against) , strike , hit , collide (with) , run into , ram , smash , crash , (Colloq) wallop
[2]	bump into , knock , meet , encounter , run into/across , come across , stumble over
[3]	bump off , find , happen , murder , kill , chance , put away , assassinate , do away with , execute , liquidate , dispatch/despatch , (Slang) take for a ride , destroy , eliminate , rub out , wipe out , do in , (US) waste , ice
[4]	demote , relegate , break , kick downstairs
[5]	dislodge

[1]	blow , collision , thud , hit , knock , buffet , clunk , whack
[2]	lump , protuberance , hump , welt , swelling , gibbosity , gibbousness , tumescence , knob , jut , prominence , bulge , protrusion , extrusion , excrescence