whirring

English Thesaurus

1. sound of something in rapid motion (noun.event)

hypernym	:	sound,
definition	:	the sudden occurrence of an audible event (noun.event)

2. like the sound of rapidly vibrating wings (adj.all)

similar	:	noisy,
definition	:	full of or characterized by loud and nonmusical sounds (adj.all)

3. sound of something in rapid motion (noun.event)

derivation	:	birr, purr, whir, whirr, whiz, whizz,
definition	:	make a soft swishing sound (verb.perception)

derivation	:	birr, purr, whir, whirr, whiz, whizz,
definition	:	make a soft swishing sound (verb.perception)