" First among equals "
The most senior person in a group of equal rank.
The British Prime Ministership is a cabinet post, no different from his colleagues, but the position is always considered to be the first among equals.
Where did it originate?:
, 18th century. Often used to describe the British Prime Minister and his/her cabinet, although the first usage pre-dates that.
Where is it used?:
Hear the idiom spoken: