Be careful not to knock against the furniture while you're moving
The boat began to knock against the dock in the rough waves
He accidentally knocked against the shelf, and the vase fell down
She didn't want to knock against her colleague's ideas directly
The car was parked so close that it could knock against the wall
As he walked through the crowded market, he kept knocking against people
The loose shutter was knocking against the windowpane in the wind
The sailor was worried the anchor might knock against the hull
Try to avoid knocking against sharp corners when carrying the large box
The cat loves to knock against my leg when it wants food
I heard something knock against the door.
Was it the wind, or something else?
I'm not sure, but it was loud.
The boat began to knock against the pier
The boat hit the dock repeatedly
The boat bumped into the pier's side