- 1. n. The quality or state of being tough. Source: opted
- 2. n. enduring strength and energy Source: wordnet
- 3. n. the property of being big and strong Source: wordnet
- 4. n. the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking Source: wordnet
- 5. n. impressive difficulty Source: wordnet
- 6. n:100 n enduring strength and energy n the property of being big and strong n the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking n impressive difficulty Source: ecdict
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toughness
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energyabilityabsorbbigconsiderablecrackingdifficultyelasticityenduringhardnessimpressivemetalobjectpropertystrengthstrongtoughqualitystate