solder

verb

soldered; soldering ˈsä-d(ə-)riŋ 

ˈsȯ-

British also ˈsäl-, 

ˈsōl-

transitive verb

1

: to unite or make whole by solder

2

: to bring into or restore to firm union

a friendship soldered by common interests

intransitive verb

1

: to use solder

2

: to become united or repaired by or as if by solder

solderability

ˌsä-də-rə-ˈbi-lə-tē 

ˌsȯ-

noun

solderer

ˈsä-dər-ər 

ˈsȯ-

noun

Examples of solder in a Sentence

Wires are soldered onto the circuit board.

Recent Examples on the Web

Its two major innovations are the patented Flex’it system, which makes jewelry elastic through microscopic 18k gold springs inserted into the construction, and the Novecento mesh, a soft weave created without soldering. —Anthony Demarco, Forbes.com, 25 May 2026

Pairing the two is like trying to solder copper wires to fast-twitch muscle fibers. —Philip Sherburne, Pitchfork, 13 Apr. 2026

My pop would solder wires to two foot-long metal rods, and then solder battery clips to the other ends. —Joe Cermele, Outdoor Life, 26 Mar. 2026

Poking at the dirt outside of the home with a sharp metal rod soldered to a handle, Tello wiggled the rod around, pulled it out, and smelled it. —Lizzie Lanuza, StyleCaster, 27 Feb. 2026

Word History

First Known Use

15th century, in the meaning defined at transitive sense 1

Rhymes for solder

• broader
• dodder
• fodder
• odder
• marauder

Kids Definition

solder

1 of 2 noun

sol·​der ˈsäd-ər 

ˈsȯd-

: a metal or a mixture of metals (as of lead and tin) used when melted to join metallic surfaces

solder

2 of 2 verb

soldered; soldering -(ə-)riŋ 

1

: to unite or repair with solder

2

: to become joined or renewed by or as if by the use of solder

solderer

-ər-ər 

noun