一いっ丁てい字じ

noun

single letter; single character

Refers to a single written character, often used in contexts emphasizing literacy or the ability to read even one character. Typically appears in negative constructions like 一丁字も知らない (illiterate).

• 彼かれは一いっ丁てい字じも読よめない。

  He cannot read a single character.

• 一いっ丁てい字じを知しらない人ひとは珍めずらしい。

  It's rare to find someone who doesn't know a single letter.