alloy, metal - a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; "brass is an alloy of zinc and copper"

hard solder - solder that contains copper; melts at a relatively high temperature; used for brazing

silver solder - a solder that contains silver

soft solder - solder that melts at a relatively low temperature

conjoin, join - make contact or come together; "The two roads join here"

dip solder - solder by immersion in a bath of molten solder

soft-solder - repair with soft-solder

braze - solder together by using hard solder with a high melting point