1. The sky as viewed during daylight
   - blue sky, blue, blue air

Type of: sky

• air unit
• air well
• air-breathing
• air-con
• air-condition
• air-conditioned
• air-cool
• air-cooled
• air-dried
• air-dry
• air-filled
• air-intake
• air-raid shelter
• air-slake
• air-sleeve
• air-to-air
• air-to-air missile
• air-to-ground
• air-to-ground missile
• air-to-surface
• air-to-surface missile
• airborne
• airborne patrol
• airborne transmission
• airbrake