1. Woolly thistle of western and central Europe and Balkan Peninsula
   - Cirsium eriophorum

Type of: Cirsium flodmanii, woolly thistle

• airplane mechanics
• airplane pilot
• airplane propeller
• airplane ticket
• airplay
• airport
• airport terminal
• airpost
• airs
• airscrew
• airship
• airsick
• airsickness
• airside
• airspace
• airspeed
• airstream
• airstrip
• airt
• airtight
• airtime
• airwave
• airway
• airwoman
• airworthiness