loud
minor, slight

feel, take

with a bump
We landed with a loud bump.

big, huge, large, nasty, nice
little, small, tiny
red
goose (usually goosebumps)

get, have

bump on
He got a nasty bump on his head.

bumps and bruises

speed (= on a road)

hit
We hit a bump and the car swerved.

smooth out (often figurative)
My job is to smooth out the bumps in supply and demand.

bump in
a bump in the road