Simple past tense and past participle of squinch.(verb)
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Use "squinched" in a sentence
"Even Oliver stumbled in, half asleep in his football pajamas, with his eyes squinched from the light my parents flicked on."
"The next thing Charlie knew, his erstwhile guide, red bathrobe and all, was hunkered down, eyes squinched closed, feeling about frantically on the floor."
"Her face was squinched up as she squinted and peered, trying to find me."