Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
billow [ˈbɪləu] n (of smoke, steam) клуб
vi (smoke) клуби́ться (impf) (sail) надува́ться (наду́ться*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: