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English definition of “bump”

bump

verb uk   /bʌmp/ us  

bump verb (HIT)

B2 [I + adv/prep] to hit something with force: She bumped into his tray, knocking the food onto his lap. B2 [T usually + adv/prep] to hurt part of your body by hitting it against something hard: I bumped my head on the shelf as I stood up.

bump verb (TRAVEL)

[I + adv/prep] to travel, usually in a vehicle, in an uncomfortable way because the surface you are moving over is rough: We bumped along the track in our car holding on to our seats.

bump

noun [C] uk   /bʌmp/ us  

bump noun [C] (RAISED AREA)

C1 a round, raised area on a surface or on the body: Her bicycle hit a bump in the road and threw her off. Tim had a nasty bump on his head from when he'd fallen over.

bump noun [C] (HIT)

the sound of something falling to the ground: We heard a bump from the next room. an accident involving a car, especially one that is not serious: A van drove into their car but luckily it was just a bump.
(Definition of bump from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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