Synonyms for whistle

noun

• an inexpensive fipple flute
• the sound made by something moving rapidly or by steam coming out of a small aperture
• the act of signalling (e.g., summoning) by whistling or blowing a whistle
• acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound
• a small wind instrument that produces a whistling sound by blowing into it

verb

• make a whining, ringing, or whistling sound
• give a signal by whistling
• make whistling sounds
• move, send, or bring as if by whistling
• move with, or as with, a whistling sound
• utter or express by whistling