1. P5 - Noun
2. P5 - Proper noun
P5
(politics) Abbreviation of power 5. the five permanent members of the United Nations Security Council (France, People's Republic of China, United Kingdom, United States of America; and formerly Soviet Union, but now Russia)
(slang, electronics, obsolete) Initialism of Pentium 5. a slang term used to refer to the successor to the Pentium 4 before the name was revealed by Intel.
Abbreviation of priority five. the lowest, least important, priority or importance level, usually
Coordinate terms: P0, P1, P2, P3, P4