eye–opener

noun eye–open·er \ˈī-ˌōp-nər, -ˌō-pə-\

: something that shows or teaches you something in a surprising way

Full Definition of EYE-OPENER

: a drink intended to wake one up

: something startling, surprising, or enlightening <her biography is a real eye–opener>

— eye–open·ing \-niŋ\ adjective

See eye–opener defined for English-language learners

1817

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