/ Dictionary / Index B butt weld: Meaning and Definition of Find definitions for: butt' weld" Pronunciation: [key] a weld between two pieces of metal butted together with the abutted ends shortened and thickened and fused together under heat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: buttweld (Thesaurus) butt stroke butty Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language