汉字、词语、拼音或英文

口哨儿 kǒushàor whistle (sound made by pursing the lips)

whistle (sound made by pursing the lips); to whistle (吹口哨儿)

怎么记住“口哨儿”: 口 mouth (Kangxi radical 30) + 哨 to whistle + 儿 son = whistle (sound made by pursing the lips).

HSK 8 级
词语

汉字

用法

'A whistle (made by pursing the lips)' - 吹口哨儿 (chuī kǒushàor) to whistle.
Note the 儿 marks colloquial (esp. northern) speech; refers to the whistling sound you make yourself, not a whistle instrument (that's 哨子).