Definition of "tough" []

• Able to withstand great strain without tearing or breaking; strong and resilient: a tough all-weather fabric. (adjective)
• Hard to cut or chew: tough meat. (adjective)
• Physically hardy; rugged: tough mountaineers; a tough cop. (adjective)
• Severe; harsh: a tough winter. (adjective)
• Aggressive; pugnacious. (adjective)

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.

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• "QUOTATION: He’s tough, ma’am, —tough is J. B.; tough and devilish sly."
• "16He’s tough, ma’am, —tough is J. B.; tough and devilish sly."