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know better

Idioms  
  1. Be able to recognize something as wrong or not possible, as in Mary should know better than to leave her child alone in the house, or Try to get in without a ticket? You know better than that. [c. 1700]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

For moments, it’s our own tertulia, though I know better than to question the bullfight.

From Salon Jun. 23, 2026

No one rings a bell at the top, and seasoned traders know better than to try to pick the exact peak.

From Barron's Jun. 11, 2026

"You become more aware of your potential and you know better the team, it's all little things that play a massive role."

From BBC Jun. 11, 2026

Churches know better than to hold a second collection every Sunday to cover ordinary expenses, because parishioners may get tired of giving.

From The Wall Street Journal Jun. 7, 2026

I know better than to argue, so I give him the response I know he expects and he pays a hundred bucks for sixty tickets and hands us each thirty.

From "Red Flags and Butterflies" by Sheryl Azzam

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