cryptorchid/kripʹtawkid/ noun

• air quality
• air rage
• air raid
• air rifle
• air sac
• airscrew
• air-sea rescue
• airship
• air shot
• air show
• airsick
• airside
• air sign
• airspace
• airspeed
• airstrip
• air terminal
• airtight
• airtime
• air-to-air
• air traffic control
• air vice-marshal
• airwaves
• airway
• airworthy