(idiomatic) At the usual or expected level.

Because or on account of one's excellence. / Most especially, in particular, most notably (out of a thing or person's other attributes, roles, etc.).

Being the proper or truest example of a general name. / Being a quintessential example of a general type.

(law) The par delictum rule prescribes that a party should not obtain satisfaction from a court of law with where his own conduct is wrongful.

(idiomatic) To be expected; normal; common.

below par

(golf) (of a score) Less than par for the hole or course (which in golf, means better than par). / (idiomatic) Not up to the average or normal standard.

plural of par value

(historical finance) The monetary unit of a country stated in terms of the monetary unit of a second country which uses the same metallic standard.

(golf) (of a score) More than par for the hole or course / (idiomatic) Better than the average or normal standard / (of a financial instrument) Having a price below its face value