do (one) an honor

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do (one) an honor

To do something that makes one feel very proud. You've done me an honor by choosing me as your best man. It means a lot to me.
See also: honor

do somebody an ˈhonour

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do somebody the ˈhonour (of doing something)

(formal) do something to make somebody feel very proud and pleased: Would you do me the honour of dining with me?
See also: honour, somebody