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on someone's mind

idiom

: worrying or bothering someone
Is there something on your mind?

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on someone's good/bad side
on someone's mind
on someone's own recognizance
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“On someone's mind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20someone%27s%20mind. Accessed 1 Dec. 2025.

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