Luftklappe
damper
Luftblase
bubble
air pocket
bleb
bubble of air
Luftkampf
dogfight
Luftlager
air bearing
Luftmasse
air mass
luftmasse
airmass
Luftlinie
as the crow flies
beeline
Luftpumpe
air pump
Antlia
Luftwaffe
air force
Lüftungsklappe
air shutter
air valve
ventilation flap
Augenklappe
eye patch
Filmklappe
clapperboard
Heckklappe
tailgate
boot
klappe
cut
Klappe
flap
mouth
Babyklappe
baby flap
baby hatch
Herzklappe
heart valve
Julklapp
Christmas
Landeklappe
flap
Fußkappe
foot cap