to knock or strike with a jolt

to travel or proceed in jerks and jolts

to hurt by knocking

to knock out of place; dislodge

to throw (a child) into the air, one other child holding each limb, and let him or her down again to touch the ground

(in rowing races, esp at Oxford and Cambridge) to catch up with and touch (another boat that started a fixed distance ahead)

to bowl (a ball) so that it bounces high on pitching or (of a ball) to bounce high when bowled

to dance erotically by thrusting the pelvis forward (esp in the phrase bump and grind)

to raise (someone)

to exclude a ticket-holding passenger from a flight as a result of overbooking

to displace (someone or something) from a previously allocated position

an impact; knock; jolt; collision

a dull thud or other noise from an impact or collision

the shock of a blow or collision

a lump on the body caused by a blow

a protuberance, as on a road surface

any of the natural protuberances of the human skull, said by phrenologists to indicate underlying faculties and character

a rising current of air that gives an aircraft a severe upward jolt

the act of bumping a child. See sense 5

the act of bumping