in combination with
US /ɪn ˌkɑmbɪˈneɪʃən wɪθ/
UK /ɪn ˌkɑmbɪˈneɪʃən wɪθ/
1.
together with; accompanying or associated with
:
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The new policy will be implemented in combination with existing regulations.
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For best results, use this product in combination with a healthy diet.