Toughen definitions

Toughen

1) Add some muscle to 2) Make tough or tougher 3) Strengthen 4) To become tough 5) To make tough
Found on https://www.crosswordclues.com/clue/toughen

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Toughen

1) Anneal 2) Coarsen 3) Enure 4) Erode 5) Inure 6) Strengthen
Found on https://www.crosswordclues.com/clue/toughen

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Toughen

• (v. i. & t.) To grow or make tough, or tougher.
Found on http://thinkexist.com/dictionary/meaning/toughen/

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Toughen

Tough'en intransitive verb & t. [ imperfect & past participle Toughened ; present participle & verbal noun Toughening .] To grow or make tough, or tougher.
Found on http://www.encyclo.co.uk/webster/T/76

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toughen

[v] - make tough or tougher
Found on http://www.webdictionary.co.uk/definition.php?query=toughen

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