The term PR means Protected Ranking, whereby an injured player is only ranked for two months of the term of an injury, and the ranking is used over the period in which he returns to play. This ranking is used for tournament entry purposes.
Protected ranking.
pr
PR is a grading system used for proof coins
tennis
tennis courts
PR stands for Public Relations. If you are referring to a geographical location, it could stand for Puerto Rico.
pr in medical terms stands for "per rectum," or a drug inserted into the rectum.
that you are 100% puerto rican
person reporting
First to win 6 games or if it is 6-5, pr 5-6 it is first to win 7 games.
PR is used in terms of grading coins to designate that the coin is proof. For example, a perfect proof coin would be graded as PR-70. A nearly perfect proof coin might be graded PR-68 or PR-69, etc.
Anyone can be PR of many countries, PR is not citizenship. It just mean the government of the PR issuing country, grant the person the right to live and work there. So to be a PR of both Singapore and Malaysia is not impossible.