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make it a rule

idiom

: to always do (a specified act)
They make it a rule to treat everyone fairly.

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make it a point to (do something)
make it a rule
make it one's business
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“Make it a rule.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20it%20a%20rule. Accessed 27 Nov. 2025.

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