Definition of "toughening" [toughening]

• Present participle of toughen. (verb)

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• "Mr. Koch told The Wall Street Journal that he's long supported the idea of toughening the punishment for violence against elected officials."
• "After a series of backroom talks, the Conservative government is closing in on a rare deal with the Bloc Québécois on a law-and-order issue, namely the toughening of Canada's parole system."
• "In 1944 Wood graduated from high school and entered the merchant marines with the idea of toughening up and perhaps living some of the adventures he was fantasizing."