billion-dollar grassbilni a.kol billow (English) [ IPA: ˈbɪloʊ ASM: বিলো]Contributed by: Biraj Kumar Kakati on 2007-12-03 1. (Abstract Noun) Sea waves, loud noise by a large sea wave সাগৰৰ ঢৌ, পানীৰ খলকনি, পানী খলক লগাৰ শব্দ English: billow, surge, Assamese: কল্লোল, খলকনি, ঢৌ, Bodo: दोहौ