Definition of right-hand man noun from the Oxford Advanced Learner's Dictionary


right-hand man

; NAmE
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a person who helps somebody a lot and who they rely on, especially in an important job the President’s right-hand man The former newspaper editor became David Cameron's right-hand man in Downing Street. He agreed to the deal after consulting his lawyer and right-hand man, Charles Alton.
See the Oxford Advanced American Dictionary entry: right-hand man