noun
savings bank
A financial institution that primarily accepts savings deposits and provides interest. The term is somewhat dated; modern Japanese more commonly uses 銀行 (bank) or specific institution names.
彼は毎月、貯蓄銀行に給料の一部を預けている。
He deposits part of his salary into a savings bank every month.
銀行 is the general term for any bank, while 貯蓄銀行 specifically emphasizes savings functions and is less common in modern usage.
Compound of 貯蓄 (savings) and 銀行 (bank). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation.