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verb (used with object)
  1. to unite or fuse (as pieces of metal) by hammering, compressing, or the like, especially after rendering soft or pasty by heat, and sometimes with the addition of fusible material like or unlike the pieces to be united.
  2. to bring into complete union, harmony, agreement, etc.
verb (used without object)
  1. to undergo welding; be capable of being welded: a metal that welds easily.
  1. a welded junction or joint.
  2. the act of welding or the state of being welded.

Origin of weld1

1590–1600; variant of well2 in obsolete sense “to boil, weld”
Related formsweld·a·ble, adjectiveweld·a·bil·i·ty, nounweld·er, wel·dor, nounweld·less, adjectiveun·weld·a·ble, adjectiveun·weld·ed, adjective


  1. a mignonette, Reseda luteola, of southern Europe, yielding a yellow dye.
  2. the dye.
Also wold, woald, would.

Origin of weld2

1325–75; Middle English welde; cognate with Middle Low German walde, Middle Dutch woude
Also called dyer's rocket.


  1. Theodore Dwight,1803–95, U.S. abolitionist leader.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for weld

Contemporary Examples

Historical Examples

  • The aim had been thus to weld into one the two branches of the House of Anjou.

  • I had the copy of this poem from Mr. Weld himself when he was ninety years of age.


    Samuel T. Pickard

  • "They will not dare—" began Mrs. Weld, with some excitement.

    The Masked Bridal

    Mrs. Georgie Sheldon

  • "Oh, dear Mrs. Weld, you do not seem at all like yourself," she gasped.

    The Masked Bridal

    Mrs. Georgie Sheldon

  • I had a big Scotchman in the factory who couldn't learn how to weld.

British Dictionary definitions for weld


  1. (tr) to unite (pieces of metal or plastic) together, as by softening with heat and hammering or by fusion
  2. to bring or admit of being brought into close association or union
  1. a joint formed by welding
Derived Formsweldable, adjectiveweldability, nounwelder or weldor, nounweldless, adjective

Word Origin

C16: variant probably based on past participle of well ² in obsolete sense to boil, heat


wold or woald (wəʊld)

  1. a yellow dye obtained from the plant dyer's rocket
  2. another name for dyer's rocket

Word Origin

C14: from Low German; compare Middle Low German walde, waude, Dutch wouw


  1. Sir Frederick Aloysius. 1823–91, New Zealand statesman, born in England: prime minister of New Zealand (1864–65)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for weld


1590s, alteration of well (v.) "to boil, rise;" influenced by past participle form welled. Related: Welded; welding.


plant (Resedo luteola) producing yellow dye, late 14c., from Old English *wealde, perhaps a variant of Old English wald "forest" (cf. Middle Low German walde, Middle Dutch woude). Spanish gualda, French gaude are Germanic loan-words.


"joint formed by welding," 1831, from weld (v.).

Online Etymology Dictionary, © 2010 Douglas Harper