鍛える

きたえる

to forge, to train, to discipline

JLPT N1

Character Breakdown

Meaning and Usage

The verb 鍛える (きたえる) primarily means "to forge" in a literal sense, such as shaping metal by heating and hammering. It also commonly means "to train" or "to discipline," especially in contexts of physical or mental improvement.

Common Contexts

  • Physical training: Often used when talking about exercising the body or building strength.
  • Mental discipline: Used metaphorically to describe strengthening the mind or character.
  • Craftsmanship: Refers to the process of forging metal, especially in traditional crafts like sword making.

Collocations and Patterns

  • 体を鍛える (からだをきたえる): to train the body, exercise
  • 精神を鍛える (せいしんをきたえる): to discipline or strengthen the mind
  • 鉄を鍛える (てつをきたえる): to forge iron

Register and Nuance

鍛える is a formal verb often used in written and spoken Japanese when discussing training or forging. It carries a nuance of deliberate effort and improvement. It is not casual and is appropriate in educational, professional, or serious contexts.

Common Learner Mistake

Learners sometimes confuse 鍛える with 練習する (practice) or 訓練する (train). While related, 鍛える emphasizes strengthening or hardening, often over time, rather than just repetition or instruction. Use 鍛える when you want to express building resilience or toughness.

Example Sentences

まいあさジョギングをしてからだをきたえるようにしています。

I try to train my body by jogging every morning.

きびしいかんきょうでせいしんをきたえることがたいせつだ。

It is important to discipline the mind in a harsh environment.

しょくにんはてつをきたえてうつくしいかたなをつくる。

A craftsman forges iron to make a beautiful sword.