bank book; savings passbook
Abbreviation of 貯金通帳 (ちょきんつうちょう). Refers to a physical passbook used for savings accounts, especially at Japan Post Bank (ゆうちょ銀行).
See also: 貯金通帳
I updated my Japan Post Bank passbook.
Check the balance in the bank book.
General term for any bank passbook; 貯金帳 specifically refers to a savings passbook.
Compound of 貯金 (savings) and 帳 (book, register). An abbreviation of 貯金通帳.