These were but the thoughts of a second, but the voices were nearer, and I heard a dull thud far up the passage, and knew that a man had jumped down from the churchyard into the hole.
Republic F-105 Thunderchief jet ground attack fighter, after the sound it makes when it crashed into the North Vietnamese countryside, due to its high rate of loss
If something thuds somewhere, it makes a dull sound, usually when it falls onto or hits something else. She ran up the stairs, her bare feet thudding on the wood There was a heavy thudding noise against the bedroom door. + thudding thud·ding the thudding of the bombs beyond the hotel
When your heart thuds, it beats strongly and rather quickly, for example because you are very frightened or very happy. My heart had started to thud, and my mouth was dry = pound. a dull/hard/heavy thud
A dull sound without resonance, like that produced by striking with, or striking against, some comparatively soft substance; also, the stroke or blow producing such sound; as, the thrud of a cannon ball striking the earth