noun
large character; big writing
Refers to physically large characters, often contrasted with 小字 (small characters).
看板には大字で店名が書かれていた。
The shop name was written in large characters on the signboard.
noun
formal kanji numerals; financial kanji numerals
Special kanji such as 壱 (1), 弐 (2), 参 (3) used in financial and legal documents to prevent forgery.
領収書には大字で金額が記入されていた。
The amount was written in formal kanji numerals on the receipt.