noun🔗ShareA large wave, swell, surge, or undulating mass of something, such as water, smoke, fabric or sound"A billow of white smoke rose from the chimney as the fire heated up. "natureweatheroceanmasssoundmaterialChat with AIVocabulary GamePractice Reading
verb🔗ShareTo surge or roll in billows."The smoke billowed from the chimney as the fire crackled. "natureweatheroceanmassenvironmentChat with AIVocabulary GamePractice Reading
verb🔗ShareTo swell out or bulge."The sails of the sailboat billowed in the strong wind. "appearancenatureweatherChat with AIVocabulary GamePractice Reading
