A stroke or blow, especially one that produces a sound
The thump of a helicopter drew nearer.
The heavy thump of footsteps on the stairs interrupted their conversation.
The thump of the helo returned, this time much closer.
Sweating and impatient after the slim escape from the ambush, Brady restrained his urge to thump the fed slowly checking Brady's micro.
There was a thump as the car smacked a body, and her eyes flew open.