a word to the wise

US /ə wɜrd tu ðə waɪz/
UK /ə wɜrd tu ðə waɪz/
"a word to the wise" picture
1.

a brief piece of advice or a warning, especially to someone who is likely to understand it without needing a lot of explanation

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Just a word to the wise, don't trust everything you hear.
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A word to the wise: always double-check your work before submitting it.
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a word to the wise is sufficientwisewiselywordin a wordwise guybe wise after the event