"thuds" in the noun sense

1. thump, thumping, clump, clunk, thud

a heavy dull sound (as made by impact of heavy objects)

"thuds" in the verb sense

1. thud, thump

make a dull sound

"the knocker thudded against the front door"

2. thud

strike with a dull sound

"Bullets were thudding against the wall"

3. crump, thud, scrunch

make a noise typical of an engine lacking lubricants

Source: WordNet® (An amazing lexical database of English)

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