weld

UK: /ˈwɛld/ US: /wɛld/ ,(weld)

WordReference Random House Learner's Dictionary of American English © 2026

weld¹ /wɛld/   v. 

1. Building, Metallurgy to unite (metal or plastic pieces) by hammering or squeezing them together, esp. after applying heat: [~ + object]
   welded the steel doors shut.
   [no object]
   The engineer is still welding.
2. to bring into complete union or harmony:
   [~ + object] He welded the recruits into a strong team.

n. [countable]

3. Building, Metallurgy a joint that has been welded.

weld•er, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2026

weld¹  (weld), v.t. 

1. Building, Metallurgy to unite or fuse (as pieces of metal) by hammering, compressing, or the like, esp. 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.

v.i. 

3. Building, Metallurgy to undergo welding;
   be capable of being welded:
   a metal that welds easily.

n. 

4. Building, Metallurgy a welded junction or joint.
5. Building, Metallurgy the act of welding or the state of being welded.

• variant of well² in obsolete sense "to boil, weld'' 1590–1600

weld′a•ble, adj. 
weld′a•bil′i•ty, n. 
weld′er, wel′dor, n. 
weld′less, adj. 

weld²  (weld), n. 

1. Plant Biology a mignonette, Reseda luteola, of southern Europe, yielding a yellow dye.
2. the dye.

Also, wold, woald, would. Also called dyer's rocket. 

• 1325–75; Middle English welde; cognate with Middle Low German walde, Middle Dutch woude

Weld  (weld), n. 

1. Biographical Theodore Dwight, 1803–95, U.S. abolitionist leader.

Collins Concise English Dictionary © HarperCollins Publishers::

weld / wɛld/ verb

1. (transitive) 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

noun

1. a joint formed by welding

Etymology: 16th Century: variant probably based on past participle of well² in obsolete sense to boil, heat

ˈweldable adjective

ˌweldaˈbility noun

ˈwelder, ˈweldor noun

weld / wɛld/, wold, woald / wəʊld/ noun

1. a yellow dye obtained from the plant dyer's rocket

Etymology: 14th Century: from Low German; compare Middle Low German walde, waude, Dutch wouw

Collins Concise English Dictionary © HarperCollins Publishers::

Weld / wɛld/ noun

1. Sir Frederick Aloysius. 1823–91, New Zealand statesman, born in England: prime minister of New Zealand (1864–65)