harden

Word parts

hard + -en

Pronunciation

• (US) IPA ^(key): /ˈhɑrdn̩/
• (UK) IPA ^(key): /ˈhɑːdn̩/

• Audio (UK)

  (file)

• Hyphenation: hard‧en

Verb

Plain form harden

Third-person singular hardens

Past tense hardened

Past participle hardened

Present participle hardening

1. If you harden something, then you make it hard, stiff, or make it more resistant.
   • Antonym: soften

Related words

• hardener