whistle
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noun
a clear, high-pitched sound made by forcing breath through a small hole between partly closed lips, or between one's teeth.
口笛(を吹くこと); その音
a sound similar to a whistle, especially one made by a bird, machine, or the wind.
(風･弾などの)ヒューという音; (鳥などの)さえずり.
a device that produces a whistle by the forced passage of air through a slit in a small tube, especially for giving a signal.
笛, ホイッスル; その音
汽笛, 警笛
verb
1. no object emit a clear, high-pitched sound by forcing breath through a small hole between one's lips or teeth:
〈人が〉口笛を吹く
e.g. the audience cheered and whistled
e.g. (as noun whistling) : I awoke to their cheerful whistling
e.g. (as adjective whistling) : a whistling noise.
express surprise, admiration, or derision by making a whistling sound:
«…に» (魅力的なことを示して)口笛を鳴らす, 吹く «at»
e.g. Bob whistled. “You look beautiful!” he said.
with object produce (a tune) by whistling.
〈曲など〉を口笛で吹く
(especially of a bird or machine) produce a clear, high-pitched sound:
〈やかん･装置などが〉ヒューヒュー, ピーピーと音を立てる; 汽笛, 警笛を鳴らす.
e.g. the kettle began to whistle.
produce a whistling sound by moving rapidly through the air or a narrow opening:
〖～＋副詞〗 〈弾･風などが〉ヒューと音を立てて進む (!〖副詞〗は経路･方向などの表現)
e.g. the wind was whistling down the chimney.
blow an instrument that makes a whistle, especially as a signal:
«人などに/…するように» 口笛で合図する «to/to do» ; «…の合図に» 笛, ホイッスルを吹く «for»
e.g. the referee did not whistle for a foul.
with object (whistle someone/something up) summon something or someone by making a whistling sound.
〖～ A to do〗 A〈人･動物など〉に…するよう口笛で合図する; 〖～ A＋副詞〗 A〈人･動物など〉を口笛で呼んで…させる (!〖副詞〗は方向などの表現) ; 〖通例be ～d〗 〈選手が〉 «…に対して» 警告の笛を受ける «for»
2. (whistle for) wish for or expect (something) in vain:
｟英･くだけた話｠ 〖通例canを伴って〗A〈物〉を要求してもむだである.
e.g. you can go home and whistle for your wages.
PHRASES
blow the whistle on
informal bring an illicit activity to an end by informing on (the person responsible).
(as) clean as a whistle
extremely clean or clear.
informal free of incriminating evidence:
e.g. the cops raided the warehouse but the place was clean as a whistle.
whistle something down the wind
let something go; abandon something.
turn a trained hawk loose by casting it off with the wind.
whistle in the dark
pretend to be unafraid.
whistle in the wind
try unsuccessfully to influence something that cannot be changed.
ORIGIN
Old English (h)wistlian (verb), (h)wistle (noun), of Germanic origin; imitative and related to Swedish vissla ‘to whistle’.