Definition of "toughen" []

• To make or become tough. See Synonyms at harden. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "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."