This is the 3616th most frequent Japanese word.
錫
Tin.
錫 is used to denote the material (tin) of the cup.
彼は錫の杯を磨いている。
He is polishing a tin cup.
錫 refers to the chemical element tin as used in manufacturing.
錫を利用してアクセサリーを作る。
Accessories are made using tin.
錫 is mentioned as a traditional material for crafts.