一いち字じ一いち字じMeanings1nounletter by letter; character by characterEmphasizes doing something for each individual character, such as reading, checking, or writing one at a time.契けい約やく書しょを一いち字じ一いち字じ確かく認にんする。I check the contract character by character.先せん生せいは一いち字じ一いち字じていねいに書かいた。The teacher wrote carefully, letter by letter.