Meaning & use
harden
To become or make something stiff, solid, or unyielding, often through cooling or exposure.
See it in a sentence
The clay will harden overnight if you leave it out in the dry air.
Years of hardship seemed to harden his attitude toward strangers.
A note on using this word
"Harden" applies literally to materials and figuratively to attitudes, opinions, or resolve.
Words with a similar meaning
solidifystiffen
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
Make it your own
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