lose one's cool
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see under keep one's cool.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
Words nearby lose one's cool
lose it, losel, lose no time, lose one's bearings, lose one's buttons, lose one's cool, lose oneself in, lose one's grip, lose one's head, lose one's hear to, lose one's lunch
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.