am·a·teur

adjective + noun

• amateur photographera person who takes photos for pleasure, not pay
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  The photo was taken by an amateur photographer.
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• amateur athletea sports person who does not play for money
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  She competed as an amateur athlete before turning professional.
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• amateur astronomera person who studies stars as a hobby
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  An amateur astronomer discovered the comet from his backyard.
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• amateur radioa hobby of sending radio messages to other people
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  My grandfather has loved amateur radio since he was a boy.
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