- tin ► NOUN 1) a silvery-white metallic chemical element. 2) a lidded airtight container made of tinplate or aluminium. 3) chiefly Brit. a sealed tinplate or aluminium container for preserving food; a can. 4) an open metal container for baking food.► VERB (tinned, tinning) 1) cover with a thin layer of tin. 2) (tinned) chiefly Brit. preserved in a tin.● have a tin ear — Cf. ↑have a tin earORIGIN Old English.
English terms dictionary. 2015.