Longman Dictionary of Contemporary English homepage


2 noun
bump2 [countable]
1MI an area of skin that is raised because you have hit it on something [↪ lump]:
She has a bump on the back of her head.
He had a few injuries, mostly bumps and bruises.
2 a small raised area on a surface:
The car hit a bump on the road.
speed bump
3C the sound or sudden movement of something hitting a hard surface:
We heard a bump in the next room.
fall/sit down etc with a bump
Rose fell, landing with a bump.
4 informal a small accident in which your car hits something but you are not hurt

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