think outside the box
US /θɪŋk aʊtˈsaɪd ðə bɑks/
UK /θɪŋk aʊtˈsaɪd ðə bɑks/
1.
to think creatively, unconventionally, or from a new perspective
:
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We need to think outside the box to solve this problem.
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The company encourages employees to think outside the box for innovative solutions.