definition of
billow

[1] #1 billow v. [wallow] rise up as if in waves; "smoke billowed up into the sky". wn

[2] #2 billow n. [surge] a large sea wave. wn

[3] #3 billow v. move with great difficulty; "The soldiers billowed across the muddy riverbed". wn

[4] #4 billow v. [surge, heave] rise and move, as in waves or billows; "The army surged forward". wn

[5] #5 billow v. [balloon, inflate] become inflated; "The sails ballooned". wn