reflection
US /rɪˈflek.ʃən/
UK /rɪˈflek.ʃən/
1.
the throwing back by a body or surface of light, heat, or sound without absorbing it
:
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The calm lake offered a perfect reflection of the mountains.
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The mirror showed her reflection.
2.
serious thought or consideration
:
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After much reflection, she decided to accept the offer.
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The book encourages deep reflection on life's meaning.