billow meaning and definition

BILLOW noun

Definition of billow (noun)

1. a large sea wave
   • synonyms: surge

BILLOW verb

Definition of billow (verb)

1. rise up as if in waves
   • "smoke billowed up into the sky"
   • synonyms: wallow
2. move with great difficulty
   • "The soldiers billowed across the muddy riverbed"
3. rise and move, as in waves or billows
   • "The army surged forward"
   • synonyms: heave, surge
4. become inflated
   • "The sails ballooned"
   • synonyms: balloon, inflate