- Definition
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- harden :become hard or harder
- The wax hardened
- harden :make hard or harder
- The cold hardened the butter
- harden :harden by reheating and cooling in oil
- temper steel
- harden :make fit
- This trip will season even the hardiest traveller
- harden :cause to accept or become hardened to; habituate
- He was inured to the cold
- harden :become hard or harder
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- Common Words