名詞 weld:

1. European mignonette cultivated as a source of yellow dye; naturalized in North America
   同義詞：dyer's rocket, dyer's mignonette, Reseda luteola
2. United States abolitionist (1803-1895)
   同義詞：Theodore Dwight Weld
3. a metal joint formed by softening with heat and fusing or hammering together

動詞 weld:

1. join together by heating
2. unite closely or intimately

1. If often takes trouble from outside to weld a family together and cause them to forget their quarrels.
   要使一家人緊密地團結，忘記他們之間的爭吵，從外部入手常常很麻煩。
2. Before applying heat for a weld, the plates should be clamped together.
   在用熱進行焊接之前，必須把金屬板緊緊地夾在一起。
3. The car has had a new wing welded on.
   這輛汽車焊接了一個新的翼子板。
4. Some metals weld better than others.
   有些金屬容易焊，有的不容易焊。

weld

v.（動詞）
weld.ed,weld.ing,welds
v.tr.（及物動詞）
To join (metals) by applying heat, sometimes with pressure and sometimes with an intermediate or filler metal having a high melting point.
焊接：通過加熱，有時加壓或有時用媒介物或有很高熔點的填充金屬來連接（金屬）
To bring into close association or union.
使緊密結合，使成整體
v.intr.（不及物動詞）
To be capable of being welded.
能被焊接
n.（名詞）
The union of two metal parts by welding.
焊接：把兩個金屬部件焊接為一個整體
The joint formed by welding.
焊接點：通過焊接形成的接合點

來源：
Alteration probably influenced by welled [past participle of] well
可能受 welled的影響 [] well的過去分詞
of well [to weld (obsolete and dialectal)]
well的變化 [焊（過時不用且為方言性的）]

【引伸】
weld.er 或
wel.dor
n.（名詞）

---------------另--------------
weld
weld 2

n.（名詞）
See dyer`s rocket
參見 dyer`s rocket
The yellow dye obtained from dyer`s rocket.
黃色植物染料：從含染料的黃花屬植物中得到的黃色染料

來源：
Middle English welde
中古英語 welde