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 ?
In short, for public servants, blowing the whistle on wrongdoing can be seen as serving the public interest.
As with internal employee whistle-blowing, several MeritCare employees viewed blowing the whistle on a multibillion dollar drug as professionally risky for the staff involved and for the MeritCare organization.
In two other cases, external auditors were retained to review system design and ended up blowing the whistle on entire projects.