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Harden vs Preharden - What's the difference?

harden | preharden |

As a noun harden

is .

As a verb preharden is

(engineering) to harden before machining.

harden

English

Verb

(en verb)
  • To become hard (tough, resistant to pressure).
  • (ergative) To make something hard or harder (tough, resistant to pressure).
  • (dated) To become or make a person or thing resistant or less sensitive.
    • When thou goest to return into Egypt, see that thou do all those wonders before Pharaoh, which I have put in thine hand: but I will harden his heart, that he shall not let the people go. — KJV, Exodus 4:21

    Derived terms

    * harden someone's heart

    Anagrams

    * English ergative verbs ----

    preharden

    English

    Verb

    (en verb)
  • (engineering) To harden before machining.