BILLOW Meaning of BILLOW in English n. & v.n. 1 a wave. 2 a soft upward-curving flow. 3 any large soft mass. v.intr. move or build up in billows. billowy adj.[ ON bylgja f. Gmc ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012