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English definition of “exponent”

exponent

noun [C]     /ɪkˈspəʊnənt/
a person who supports an idea or belief: an exponent of sth Adam Smith was an exponent of free trade.
a person who performs an activity: an exponent of sth He is one of Japan's master exponents of the art of sushi.
a number or sign which shows how many times another number is to be multiplied by itself: In 6³ and y², 3 and 2 are the exponents.
(Definition of exponent noun from the Cambridge Business English Dictionary © Cambridge University Press)
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