A large wave, swell, surge, or undulating mass of something, such as water, smoke, fabric or sound

To surge or roll in billows. / To swell out or bulge.

plural of billow

Third-person singular simple present indicative form of billow

present participle of billow

The act of something that billows; a billow.

simple past tense and past participle of billow

plural of billowing

plural of Billow

A surname.