whistle

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whis·tle

(wis'ĕl),
1. A sound made by forcing air through a narrow opening such as pursed lips.
2. An instrument for producing a whistle.
[A.S. hwistle]

whistle

(hwĭs′ĕl)
1. A sound produced by pursing one's lips and blowing.
2. A tubular device driven by wind that produces a loud and usually shrill sound.
References in periodicals archive ?
Paul van Buitenen, the Dutch auditor who blew the whistle on corruption in the European Commission, was suspended and now faces disciplinary charges.
Marvin Rudnick, Earnest's attorney, claims his client was laid off because she blew the whistle on politically connected contractors.
Footballers blew the whistle on a massive pitch invasion .