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Thesaurus: harden

To make hard or harder; to make firm or compact; to indurate; as, to harden clay or iron.

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  1. v. t. To make hard or harder; to make firm or compact; to indurate; as, to harden clay or iron.
  2. v. t. To accustom by labor or suffering to endure with constancy; to strengthen; to stiffen; to inure; also, to confirm in wickedness or shame; to make unimpressionable.
  3. v. i. To become hard or harder; to acquire solidity, or more compactness; as, mortar hardens by drying.
  4. v. i. To become confirmed or strengthened, in either a good or a bad sense.
  5. v. become hard or harder
  6. v. make hard or harder
  7. v. harden by reheating and cooling in oil
  8. v. make healthy
  9. v. cause to accept or become hardened to; habituate
  10. v:100 v. become hard or harder v. make hard or harder