tough [ˈtʌf]

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¹ tough adjective

• very difficult to do or deal with —often followed by to + verb
• physically and emotionally strong : able to do hard work, to deal with harsh conditions, etc.
• physically strong and violent

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² tough verb

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³ tough noun

• a tough and violent person

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⁴ tough adverb

• in a way that shows that you are strong or tough