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to harden
01
to increase firmness or solidity of something
02
to increase in firmness or solidity
03
to make accustomed or less sensitive to unfavorable conditions
04
to make someone's attitude or feelings less sympathetic
Example
The painter used a fixative to harden the layers of charcoal on the canvas.
The blacksmith used a quenching process to harden the metal.
The potter fired the ceramics in the kiln to harden them into durable pieces.
The anonymity of online interactions can harden individuals.
Continuous exposure to violence in the media can harden individuals to the suffering of others.
