flew or fell.
proceed
another word for air sac is alveolus.
The cat moved with agile grace as it leapt from one branch to another.
in the open air
flew
air
As an adjective; dead, departed. As a noun; decedent.
filthy air = pollution or smog
When the word air means to air out, then the word beginning with B is bare (like when someone bares their soul).
pant
air