1. a high-pitched sound made by forcing air through pursed lips or a small opening
2. a small device that produces a high-pitched sound when air is blown through it

1. to make a high-pitched sound by forcing air through pursed lips or teeth
2. to produce a high-pitched sound using a whistle device
3. to move quickly through the air making a high-pitched sound

Examples

• The referee blew his whistle to start the game.
• She can whistle her favorite tune perfectly.
• The tea kettle’s whistle told us the water was ready.
• He gave a sharp whistle to call his dog.
• The wind whistled through the trees.
• The bullet whistled past his ear.
• The coach’s whistle echoed across the field.