tin

noun

• 1a silvery-white metal, the chemical element of atomic number 50. (Symbol: Sn)
• short for tinplate.
• British informal dated money.

Tin is quite a rare element, occurring chiefly in the mineral cassiterite. Pure crystalline tin exists in two allotropic modifications, the metallic form ( white tin), and a semimetallic form ( gray tin). It is used in various alloys, notably bronze, and for electroplating iron or steel sheets to make tinplate

• 2a metal container, in particular.
• chiefly Britishanother term for tin can.she had opened a tin of beans
• a lidded airtight container made of tinplate or aluminum:Albert got out the cookie tin
• chiefly British an open metal container for baking food:grease a loaf tin

verb (tins, tinning, tinned /tind/)

• cover with a thin layer of tin:the copper pans are tinned inside