watch someone's back
idiom
variants
or have someone's back
: to protect someone who is doing something that is dangerous or risky
A police officer always watches his partner's back.
Dictionary Entries Near watch someone's back
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“Watch someone's back.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watch%20someone%27s%20back. Accessed 19 Apr. 2024.
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