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.
to bring into complete union, harmony, agreement, etc.
a welded junction or joint.
the act of welding or the state of being welded.
a mignonette, Reseda luteola, of southern Europe, yielding a yellow dye.
the dye.
(tr) to unite (pieces of metal or plastic) together, as by softening with heat and hammering or by fusion
to bring or admit of being brought into close association or union
a yellow dye obtained from the plant dyer's rocket
another name for dyer's rocket
First recorded in 1590–1600; variant of well 2 in the obsolete sense “to boil, rise,” influenced by past participle welled
1325–75; Middle English welde; cognate with Middle Low German walde, Middle Dutch woude
To weld is to use intense heat to merge two pieces of metal together. This word refers to other kinds of joining as well. If two companies merge, they’ve been welded. Have you ever seen someone with a large metal mask and a blowtorch, doing something to pieces of metal? That person — called a welder — was welding, which joins pieces of metal together through heat. Welding is a type of merging, joining, or connecting. The concept also applies to situations that don’t involve metal or flames. You could say a married couple has been welded. This is word for putting things together.
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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
You cannot weld a reactor vessel with one.
From MarketWatch • Mar. 26, 2026
The crack may have resulted from "a poor weld or a weld that deteriorated due to train traffic or weather", daily newspaper El Mundo said, citing unidentified technicians with access to the inquiry.
From Barron's • Jan. 21, 2026
Inside a cavernous shipbuilding hangar, workers cut and weld steel for the yard's latest icebreaker, a heavy-duty Arctic vessel, called Polarmax that's destined for the Canadian coastguard.
From BBC • Jan. 18, 2026
“I had been a woodworker and building things for two years, but learning how to weld was a gift,” she says.
From Los Angeles Times • Feb. 19, 2025
One afternoon Dad walked over and stood right next to Shawn, watching him weld.
From "Educated" by Tara Westover
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
