1. past tense of whistle; made a high-pitched sound by forcing air through pursed lips or teeth
2. past tense of whistle; made a similar high-pitched sound using a whistle or other device
3. past tense of whistle; moved quickly through the air making a whistling sound

Examples

• She whistled a cheerful tune while walking to work.
• The referee whistled to stop the game.
• He whistled for his dog to come back.
• The wind whistled through the trees during the storm.
• The bullet whistled past his ear.
• The coach whistled loudly to get the players’ attention.
• She whistled in amazement at the beautiful view.