qì​dí

whistle

汽笛 qì​dí
whistle noun
a whistle or horn powered by steam or compressed air, used on ships, locomotives, or as a factory signal

The captain sounded the whistle, signaling that the ship was about to set sail.

Frequency

Movie subtitles
1.10 per million appears in 0% of films
Written text
0.752 per million

Sources

Definitions
CC-CEDICT