beep


Concise Oxford English Dictionary © 2008 Oxford University Press:
beep/biːp/
noun a short, high-pitched sound emitted by electronic equipment or a vehicle horn. verb produce a beep.

chiefly N. Amer. summon with a device that beeps.

– derivatives
beeper noun.
– origin 1920s: imitative.
'beep' also found in these Oxford entries:

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