What is another word for billows?
Pronunciation: [bˈɪlə͡ʊz] (IPA) 
Billows are large, rolling waves or masses of cloud or smoke that produce a sense of movement and fluidity. Some synonyms for this word include surges, swells, undulations, and heaving masses. The term can also be used in relation to material, like fabric, that moves in a similar pattern, which can be referred to as flowing or fluttering fabric. Other words that fit this description include undulating, rippling, and waving. Billowing can also be used to describe a sudden rush or surge of air, with words such as gust, blast, or puff fitting in this context. Regardless of the context, the word billows connotes a sense of motion and power, characteristics that its synonyms also share.
