open someone's eyes

US /ˈoʊpən ˈsʌmˌwʌnz aɪz/
UK /ˈoʊpən ˈsʌmˌwʌnz aɪz/
"open someone's eyes" picture
1.

to make someone realize the truth about a situation, especially a difficult or unpleasant one, that they had not understood or known before

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Traveling abroad really opened my eyes to different cultures.
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The documentary opened her eyes to the harsh realities of poverty.
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eye-openingin someone's eyeswith your eyes opencatch someone's eyethe apple of someone's eyean eye for an eyegive someone the glad eye