ENGLISH
REFERENCE

welding

n. · v.
US //ˈwɛɫdɪŋ// UK //wˈɛldɪŋ// weld·ing
  1. 1 the industrial process (n.)
    B2 Upper Intermediate Science

    the activity or trade of joining metal parts together using heat.

    the industrial process of joining materials by fusion, typically involving high heat and often a filler material.

    Example

    He wore a special mask to protect his eyes while he was doing the welding.

    Example

    Advanced robotic welding has significantly increased the speed and precision of automotive assembly lines over the last decade.

    Usage

    Often used as an uncountable noun to describe the trade or the action.
  2. 2 joining things together (v.)
    B2 Upper Intermediate

    the action of connecting two things very strongly, either physically or metaphorically.

    the present participle of 'weld', describing the act of uniting components into a single whole.

    Example

    The leader is welding the different groups into one strong team.

    Example

    By welding disparate political factions into a cohesive coalition, the prime minister managed to pass the controversial legislation.

    Usage

    Can be used transitively with a direct object, often in a figurative sense.
Origin

By surface analysis, weld + -ing.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Last updated June 20, 2026