billows
nounUK /ˈbɪləʊz/
US /ˈbɪloʊz/
Big rolling waves or clouds that move in a puffy, swelling way.
Thick billows of smoke rose from the chimney.
OTHER MEANINGS
2. Large waves of the ocean moving in a rolling motion.
The billows crashed against the rocks.
3. To rise or roll in large swelling masses, like smoke or clouds.
Smoke billowed from the burning logs.
4. A large swelling or rolling mass of something, such as fabric or fog.
The sail filled with wind and formed a billow.