This is the 10925th most frequent Swedish word.
luft
Air.
Here, 'luft' refers to the breathable air in a space or environment.
Jag öppnade fönstret för att släppa in frisk luft.
I opened the window to let in fresh air.
In this context, 'luft' denotes the physical space above the ground where the airplane is flying.
Flygplanet lyfte och steg snabbt upp i luften.
The airplane took off and quickly ascended into the air.
Here, 'luftig' derived from 'luft', metaphorically describes the quality of being light or airy in texture or appearance.