billow

US /ˈbɪl.oʊ/
UK /ˈbɪl.oʊ/
1.

cuồn cuộn

to spread over a large area, or (especially of things made of cloth) to become filled with air and appear to be larger:

:
Smoke billowed (out) from the burning building.
1.

cuồn cuộn

a large, moving mass of something, such as smoke or cloud, that spreads over a large area:

:
billows of smoke