Answer: whirr

AnswerCrossword Clue
WHIRRHelicopter sound
whirrto fly, revolve, or move rapidly with a whir hummingbirds whirring past
whirrmove or carry rapidly with a whir
whirrto spin with a humming noise
whirrwhir
WHIRRChopper sound
WHIRRFan sound
WHIRRPropeller production
WHIRRMachinery sound
WHIRRSound from a fan
WHIRRFan's noise
WHIRRLasso's sound
WHIRRAviary sound
WHIRRFan sound
WHIRRBuzzing
WHIRRMachine sound
WHIRRBlender sound
WHIRRFan's sound
WHIRRHum
WHIRRBlender noise
WHIRRBuzzing sound
WHIRRFan's buzz
WHIRRMusic to a mechanic?
WHIRRPropeller sound
WHIRRHumming sound