Luftblase
bubble
air pocket
bleb
bubble of air
Luftklappe
damper
Luftlager
air bearing
Luftmasse
air mass
luftmasse
airmass
Aufblasen
bluster
aufblasen
inflate
show off
Luft-Luft
air-to-air
Luftburg
bouncing castle
Luftgeist
sylph
Lufthansa
Lufthansa
Luftmine
blockbuster
Luftballon
toy balloon
Luftbild
air photograph
Luftbrücke
airlift
Lufthafen
airport
Luftkuss
air kiss
Luftlinie
as the crow flies
beeline
Luftloch
air hole
air pocket
Luftpost
airmail