American Heritage Dictionary
(3)
Century Dictionary
(8)
GNU Webster's 1913
(2)
WordNet
(4)
Elsewhere on the web
There was a sickening thud, a heavy fall, and low, deep moans.— Bamboo Tales
A second and heavier thud--the goddess!— The Tinted Venus A Farcical Romance
At last they were gone, somewhere into the flaming west, and now the red sunbeams slanted on eagle crests and tipped the sea of polished spiked helmets with fire, for a line regiment was coming, shaking the earth with its rhythmical tramp--thud!— Lorraine A romance
In another instant there was a dull thud, and Donald Ward stood over the sergeant with a pistol, grasped by its barrel, in his hand.— The Northern Iron
The thud, thud, thud of the darabukkeh below kept time with the throbbing of his pulses, while the subconscious visualizing of the body-movements of the Sudanese dancers aided and abetted the woman in her designs You know, dear, you are behaving very foolishly.— There was a King in Egypt

American Heritage Dictionary (1)
Century Dictionary (2)
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