Billow Funeral Home, Jun 4, 2026 · billow (plural billows) A large wave, swell, surge, or undulating mass of something, such as water, smoke, fabric or sound. Something billows when there's a fluid or blowing motion, such as the air filling a curtain at an open window, or smoke billowing from a fire. 6 days ago · The meaning of BILLOW is wave; especially : a great wave or surge of water. BILLOW definition: a great wave or surge of the sea. to spread over a large area, or (especially of things made of cloth) to become filled with air…. Learn more. BILLOW meaning: 1. verb billow a surge of the sea; a swell, breaker, crest; to swell out as by the wind: The boat’s sails billow in the wind. The verb to billow means ‘to rise or surge in billows’ and also ‘to swell out or puff up’ or ‘to cause to swell or puff up. ’ Jun 11, 2026 · Synonyms for BILLOW: wave, swell, surge, ripple, tsunami, curl, surf, sea (s); Antonyms of BILLOW: shrink, contract, compress, condense, constrict. kunrd6, zub1lz, 8ahqh, c4j7tbh, whblc, lj99mrw, icl, owd2s, twvs, rkyt0g,