superior
n. countablen. a person who has a higher rank or more authority than you at work or in an organization. You usually follow their instructions or report to them.
n. a person of higher rank, status, or quality than another within a hierarchical structure. Often used in professional, military, or ecclesiastical contexts to denote someone with authority over subordinates.
You should discuss this issue with your immediate superior.
The manager reported the safety concerns to her superior before making any public statements.
While the junior officers respected his tactical knowledge, they found it difficult to approach their superior with suggestions that contradicted his established protocols.
Often used with the possessive pronoun or the preposition 'to' when comparing ranks.