Noun
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impudent aggressiveness
"I couldn't believe her boldness"
"he had the effrontery to question my honesty"
-
the courage to carry on
"he kept fighting on pure spunk"
"you haven't got the heart for baseball"
-
any bundle of nerve fibers running to various organs and tissues of the body
- nervus
Verb
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get ready for something difficult or unpleasant