Crossword puzzle clue "toughen var"

Here are the possible solutions for toughen var clue

Answer
Clue
Relevancy
enure
Clue
Toughen or harden (Var.)
Toughen: Var.
Definition
to accustom or habituate to, also INURE
aman
Clue
Make -- out of (toughen up)
anneal
Clue
Toughen
Toughen, as steel
Toughen, as glass
Treat with heat to toughen
Toughen, as glass or steel
Definition
to make (as steel or glass) less brittle by heating and then cooling

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