Source : Webster's Revised Unabridged Dictionary (1913)

Weld \Weld\, n.
   The state of being welded; the joint made by welding.

   {Butt weld}. See under {Butt}.

   {Scarf weld}, a joint made by overlapping, and welding
      together, the scarfed ends of two pieces.

Weld \Weld\, v. t.
   To wield. [Obs.] --Chaucer.

Weld \Weld\, n. [OE. welde; akin to Scot. wald, Prov. G. waude,
   G. wau, Dan. & Sw. vau, D. wouw.]
   1. (Bot.) An herb ({Reseda luteola}) related to mignonette,
      growing in Europe, and to some extent in America; dyer's
      broom; dyer's rocket; dyer's weed; wild woad. It is used
      by dyers to give a yellow color. [Written also {woald},
      {wold}, and {would}.]

   2. Coloring matter or dye extracted from this plant.

Weld \Weld\, v. t. [imp. & p. p. {Welded}; p. pr. & vb. n.
   {Welding}.] [Probably originally the same word as well to
   spring up, to gush; perhaps from the Scand.; cf. Sw. v["a]lla
   to weld, uppv["a]lla to boil up, to spring up, Dan. v[ae]lde
   to gush, G. wellen to weld. See {Well} to spring.]
   1. To press or beat into intimate and permanent union, as two
      pieces of iron when heated almost to fusion.

   Note: Very few of the metals, besides iron and platinum. are
         capable of being welded. Horn and tortoise shell
         possess this useful property.

   2. Fig.: To unite closely or intimately.

            Two women faster welded in one love.  --Tennyson.

Source : WordNet®

weld
     n 1: European mignonette cultivated as a source of yellow dye;
          naturalized in North America [syn: {dyer's rocket}, {dyer's
          mignonette}, {Reseda luteola}]
     2: United States abolitionist (1803-1895) [syn: {Theodore
        Dwight Weld}]
     3: a metal joint formed by softening with heat and fusing or
        hammering together
     v 1: join together by heating; "weld metal"
     2: unite closely or intimately; "Her gratitude welded her to
        him"