ichidan verb, transitive verb
Used for making a firm decision about something, often with authority or after deliberation. Common with nouns like 方針, 日取り, 運命.
会議の日取りを来週の金曜日に定めた。
We decided on next Friday as the date for the meeting.
彼は自分の進む道を定めた。
He determined his own path forward.
ichidan verb, transitive verb
establish; lay down; stipulate
Used for setting rules, laws, standards, or conditions in a formal or official context. Often appears in legal, regulatory, or organizational language.
法律は罰則を厳しく定めている。
The law stipulates strict penalties.
会社は新しい就業規則を定めた。
The company established new work regulations.
ichidan verb, transitive verb
bring peace; make peaceful; settle
Literary or somewhat archaic use, often with 国 or 天下 as the object, meaning to pacify or bring order. In modern Japanese, 治める or 平定する are more common.
王は国を定めるために尽力した。
The king made every effort to bring peace to the land.