
Toughen
Personal Growth
Often describes personal development through challenges.

Living abroad toughened her up considerably.
Emotional Strength
Can imply developing emotional resilience, not just physical.

He toughened up after years of competitive sports.
Preparedness
Used for indicating readiness for difficult situations.

Soldiers must toughen up before deployment.
Compare with
EndureFortifyHardenInureReinforceResilienceSteadfastStrengthenTemper
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