文も字じ合あわせ錠じょう

Meanings

1

noun

combination lock (using letters/characters)

Specifically a lock opened by aligning letters or characters, as opposed to a numeric combination lock.

lock, fetters, shackles

数すう字じ合あわせ錠じょう
A numeric combination lock, while 文字合わせ錠 uses letters or characters.
ダイヤル錠じょう
A general dial lock, which may be numeric or alphabetic; 文字合わせ錠 specifies a letter-based mechanism.

Compound of 文字 (moji, 'letter/character'), 合わせ (awase, 'matching/aligning'), and 錠 (jō, 'lock').