/ Dictionary / Index B billowy: Meaning and Definition of Find definitions for: bil•low•y Pronunciation: (bil'ō-ē), [key] — -low•i•er, -low•i•est. characterized by or full of billows; surging: a rough, billowy sea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: billowy (Thesaurus) billow cloud billposter Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language