American Heritage Dictionary
(1)
Century Dictionary
GNU Webster's 1913
WordNet
(3)
Elsewhere on the web
From vroom-vroom to whirr-whirr: a solution to the Melbourne gridlock— On Line Opinion - Latest Articles
It then goes into a state in which it tries to start-up every 10 seconds or so, with a quick fan whirr, the hard drive starts up then it dies again.— Discussions: Message List - root
Yet, over the objections of reasonable protesters fearing for the ruined landscape, or dreading the annoying whine and whirr, the authorities have marched over the once-lovely hills and moors of Britain, planting grotesque and futile engines.— GREENIE WATCH
The goal was now within six or eight feet Then came a sudden rumble and whirr, and Hamp felt a weight drop upon the rear part of his body.— The Camp in the Snow, or, Besieged by Danger

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