opposite number, one's
One's counterpart, as in He's my opposite number in the California office. This expression is generally used for a person's equivalent in another organization or system (number alluding to their position in a hierarchy). [c. 1900]
Words nearby opposite number, one's
opposer muscle of little finger,
opposer muscle of thumb,
opposite,
opposite field,
opposite number,
opposite number, one's,
opposite prompt,
opposite sex,
opposition,
oppositional disorder,
oppositionist