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English definition of “(as) blind as a bat”

(as) blind as a bat

informal humorous
unable to see well: I'm as blind as a bat without my glasses.Eyesight, glasses and lensesUsing the eyesThe eye and surrounding areaOptics, microscopy and lasers
(Definition of (as) blind as a bat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “(as) blind as a bat”

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