someone's word is law

idiom

used to say that other people must do what someone says
He'll listen to suggestions, but in the end, his word is law.

Cite this Entry

“Someone's word is law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/someone%27s%20word%20is%20law. Accessed 2 Dec. 2022.

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