verb🔗ShareEndurecer, fortalecerTo make tough."The difficult training regime is toughening the athletes for the upcoming competition. "El régimen de entrenamiento difícil está fortaleciendo a los atletas para la próxima competición.qualityconditionprocessabilityChat with AIVocabulary GamePractice Reading
verb🔗ShareEndurecerseTo become tough."The young tree is toughening up against the strong winds. "El árbol joven se está endureciendo contra los fuertes vientos.conditionprocessqualitybodyChat with AIVocabulary GamePractice Reading
noun🔗ShareEndurecimientoThe process of making something tougher."The winter boots underwent a special toughening to make them more resistant to ice and snow. "Las botas de invierno se sometieron a un endurecimiento especial para hacerlas más resistentes al hielo y la nieve.processmaterialtechnicalChat with AIVocabulary GamePractice Reading
