Definition of Toughens. Meaning of Toughens. Synonyms of Toughens
Here you will find one or more explanations in English for the word Toughens.
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Definition of Toughens
Toughen Toughen Tough"en, v. i. & t. [imp. & p. p. Toughened; p. pr.
& vb. n. Toughening.]
To grow or make tough, or tougher.