/ Dictionary / Index W waistline: Meaning and Definition of Find definitions for: waist•line Pronunciation: (wāst'līn"), [key] — n. the circumference of the body at the waist: exercises to reduce the waistline. the part of a garment that lies at or near the natural waistline, as the seam where the skirt and bodice of a dress are joined. an imaginary line encircling the waist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: waistline (Thesaurus) waist-high wait Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language