Pr (Noun) — A soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process.
Pr (Noun) — Representation of all parties in proportion to their popular vote.
Pr (Noun) — A self-governing commonwealth associated with the United States occupying the island of Puerto Rico.
Pr (Noun) — A promotion intended to create goodwill for a person or institution.