strengthen

強くする、強化する

人や物を強くし、損傷や困難に耐えられるようにする。

やさしい英語で： To make someone or something stronger or better able to resist damage or difficulty.

• These exercises strengthen your legs.
• They strengthened the bridge with steel.
• Working together has strengthened our friendship.

類義語： reinforce, fortify

反対語： weaken

よく使う表現： strengthen muscles, strengthen ties, strengthen a wall, strengthen an argument

強くなる、強まる

力や影響力、効果が以前より大きくなる。

やさしい英語で： To become stronger, more powerful, or more effective.

• The wind began to strengthen.
• The economy strengthened during the summer.
• Their confidence is strengthening with every success.

類義語： grow stronger, improve

反対語： weaken

よく使う表現： wind strengthen, economy strengthen

勇気づける、励ます

困難に立ち向かえるよう、人に勇気や希望を与える。

やさしい英語で： To give someone courage or hope to face something difficult.

• Her kind words strengthened me.
• His friends strengthened him during those lonely months.
• The letter strengthened her resolve to continue.

類義語： encourage, hearten, embolden

反対語： discourage

よく使う表現： strengthen someone, strengthen someone’s resolve