HSK C7-9
Correct

笛

/ dí / 
Strokes

Definition

flute

Example

As a Noun
(bamboo) flute
1
Tóngdí
铜笛

brass pipe

2
Juédí
角笛

horn pipe

3
Bídí
鼻笛

nose flute

As a Noun
whistle
4
Míngdí
鸣笛

sound a siren