1. people who whistle
2. various birds known for their whistling calls
Usage: ornithology
3. atmospheric radio signals that produce whistling sounds
Usage: physics; radio

Examples

• The street performers included talented whistlers who drew large crowds.
• She joined a group of whistlers who practiced classical melodies.
• The forest was filled with the sounds of various whistlers at dawn.
• Ornithologists study the migration patterns of whistlers in this region.
• Radio operators sometimes pick up natural whistlers from lightning strikes.
• The atmospheric whistlers created eerie sounds on the radio equipment.