toughness
/ (ˈtʌfnɪs) /
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noun
the quality or an instance of being tough
metallurgy the ability of a metal to withstand repeated twisting and bending, measured by the energy in kilojoules needed to break itSee brittleness (def. 2), softness (def. 2)
QUIZ
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Question 1 of 9
Which of the following nouns has an irregular plural form?
Words nearby toughness
toughie, toughish, tough it out, tough love, tough-minded, toughness, tough nut, tough pitch, tough row to hoe, tough sledding, toujours perdrix
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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