English abbreviations from prt to ps
- PRT (Physical Readiness Test)
- PRTF (Personnel Recovery Task Force)
- PRTP (Peer Review of Teaching Project)
- PRU (Pupil Referral Unit)
- PRV (Pressure Release Valve)
- PRW (Prentice Airport (FAA: 5N2))
- PRX (Cox Field)
- PRY (Paraguay (ISO 3166 trigram))
- PRZ (Prineville Airport (FAA: S39))
- ps (Pashto language (ISO 639-1 code))
- Ps. (Psalmus ("Psalm"))