Webster's English Dictionary

Enter the word to look up:

bump

1. bump \'b*mp\ vb [imit.] 1: to strike or knock with force or violence  2: 
   to collide with  3a: to knock out of place  3b: to oust usu. by virtue of 
   seniority right  4: to apply pressure to (as sheet metal) so as to make or 
   remove a concavi ty or convexity 1: to knock against something with a 
   forceful jolt  2: to proceed in a series of bumps  : to encounter esp. by 
   chance  - bump into 
2. bump n 1a: a sudden forceful blow, impact, or jolt  1b: DEMOTION  2: a 
   relatively abrupt convexity or protuberance on a surface : as  2a: a 
   swelling of tissue  2b: a cranial protuberance