commissioner

As a proper noun mayor

is .

As a noun commissioner is

a member of a commission.

As nouns the difference between director and commissioner

is that director is one who directs; the person in charge of managing a department or directorate (e.g., director of engineering), project, or production (as in a show or film, e.g., film director) while commissioner is a member of a commission.

As an adjective principal

is principal, main.

As a noun commissioner is

a member of a commission.

As nouns the difference between plenipotentiary and commissioner

is that plenipotentiary is a person invested with full power, especially as the diplomatic agent of a sovereign state, (originally) charged with handling a certain matter while commissioner is a member of a commission.

As an adjective plenipotentiary

is invested with full power.

As nouns the difference between commissioner and commander

is that commissioner is a member of a commission while commander is one who exercises control and direction of a military or naval organization.

As nouns the difference between customer and commissioner

is that customer is a patron; one who purchases or receives a product or service from a business or merchant, or intends to do so while commissioner is a member of a commission.

As nouns the difference between specialist and commissioner

is that specialist is someone who is an expert in, or devoted to, some specific branch of study or research while commissioner is a member of a commission.

As an adjective specialist

is specialised.

As nouns the difference between commissioner and commissionaire

is that commissioner is a member of a commission while commissionaire is (british) a uniformed doorman.

As nouns the difference between commissioner and conveyor

is that commissioner is a member of a commission while conveyor is a person that conveys, transports or delivers.