Luftkeim
airborne germ
Luftgeist
sylph
luftig
airy
aerial
filmy
Luftkrieg
aerial warfare
Luftkuss
air kiss
Luftraum
airspace
Luftweg
airway
air route
Lüfter
fan
blower
lüften
ventilate
air
Hüftbein
hip bone
Luft
sky
atmosphere
air
Luftburg
bouncing castle
Luftmine
blockbuster
Luftzug
draft
Luftbild
air photograph
Lufthoheit
air sovereignty
Luftkampf
dogfight
Luftlinie
as the crow flies
beeline
Luftloch
air hole
air pocket
Luftpost
airmail