American Heritage® Dictionary of the English Language, Fourth Edition
- v. To make or become tough. See Synonyms at harden.
Century Dictionary and Cyclopedia
- Specifically, of copper, in its metallurgy, the elimination of the foreign metals as oxids and of copper oxid itself, changing the qualities of the cast from brittleness to ductility.
- To grow tough or tougher.
- To make tough or tougher.
GNU Webster's 1913
- v. To grow or make tough, or tougher.
- v. make tough or tougher
“You gotta fuckin toughen up with the cold and fuckin dealin with rugged not you average fuck around kinda guy.”
“Eventually, the skin will "toughen," and your child won't feel as much discomfort.”
“It's really cute--but you could "toughen" it's image up to make it more "Terp" appropriate.”
“: He thought he was about to be put into one of those vile Boys Bands that the Tedrels used to " toughen" the boys.”
“Well – you must "toughen" your plants more gently than that.”
“The president, who huddled with cabinet members in the secure Situation Room on Monday "to decide on next steps," also requested that legislation be sent to Congress to "toughen" and reform existing law on caps on damages linked to oil spills, the White House said.”
“Oh and don't do anything silly like "toughen" your feet.”
“If you lived in literary London and had as many bad reviews as I did, you kind of toughen up anyway.”
“Mr Woolas told the Sunday Times he felt immigration was the second biggest problem facing the population and he would "toughen" up current legislation on the issue.”
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