whistle (whistles plural & 3rd person present) (whistling present participle) (whistled past tense & past participle )
1 verb When you whistle or when you whistle a tune, you make a series of musical notes by forcing your breath out between your lips, or your teeth.
He was whistling softly to himself... V
As he washed he whistled a tune. V n
2 verb When someone whistles, they make a sound by forcing their breath out between their lips or their teeth. People sometimes whistle when they are surprised or shocked, or to call a dog, or to show that they are impressed.
He whistled, surprised but not shocked... V
Jenkins whistled through his teeth, impressed at last... V prep
Whistle is also a noun., n-count oft supp N
Jackson gave a low whistle.
→
wolf-whistle
3 verb If something such as a train or a kettle whistles, it makes a loud, high sound.
Somewhere a train whistled... V
...the whistling car radio. V-ing
♦
whistling n-sing oft the N of n
...the whistling of the wind.
4 verb If something such as the wind or a bullet whistles somewhere, it moves there, making a loud, high sound.
The wind was whistling through the building... V prep
As I stood up a bullet whistled past my back. V prep
5 n-count A whistle is a loud sound produced by air or steam being forced through a small opening, or by something moving quickly through the air.
oft N of n
Hugh listened to the whistle of a train., ...the whistle of the wind.
6 n-count A whistle is a small metal tube which you blow in order to produce a loud sound and attract someone's attention.
On the platform, the guard blew his whistle...
7 n-count A whistle is a simple musical instrument in the shape of a metal pipe with holes.
→
tin whistle
8 If you blow the whistle on someone, or on something secret or illegal, you tell another person, especially a person in authority, what is happening.
♦
blow the whistle phrase V inflects, usu PHR on n
(=inform)
Companies should protect employees who blow the whistle on dishonest workmates and work practices.
→
whistle-blower
9 If you describe something as clean as a whistle, you mean that it is completely clean.
♦
clean as a whistle phrase v-link PHR