1. Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa
   - quaking aspen, Populus tremula

Type of: aspen

• waterway
• waterweed
• waterwheel
• waterwheel plant
• waterworks
• waterworn
• watery
• watery-eyed
• WATS
• WATS line
• Watson
• watt
• watt second
• watt-hour
• wattage
• Watteau
• wattle
• wattle and daub
• wattmeter
• Watts
• Watusi
• Watutsi
• Waugh
• waul
• Wausau