whistle

US /ˈwɪs.əl/
UK /ˈwɪs.əl/
"whistle" picture
1.

silbido, silbato

a clear, high-pitched sound made by forcing breath through a small hole between partly closed lips, or through a device that produces such a sound

:
He let out a loud whistle to get their attention.
Soltó un fuerte silbido para llamar su atención.
The referee blew his whistle to signal the end of the game.
El árbitro hizo sonar su silbato para señalar el final del partido.
1.

silbar

to make a clear, high-pitched sound by forcing breath through a small hole between partly closed lips, or through a device that produces such a sound

:
He began to whistle a cheerful tune as he walked.
Empezó a silbar una melodía alegre mientras caminaba.
The train whistled as it approached the station.
El tren silbó al acercarse a la estación.