Initialism of periodic automatic replenishment: in inventory control, a fixed quantity of an item that must be kept on hand to support daily operations.

Initialism of planed all round: of timber, planed on all sides as opposed to rough sawn.

present participle of par

On a level; in the same condition, circumstances, position, rank, etc.; equal.

Alternative form of on a par

simple past tense and past participle of par off

(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.