Your abbreviation search returned 85 meanings
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| Rank Abbr. | Meaning | |
|---|---|---|
| PSO | Particle Swarm Optimization | |
| PSO | Phantasy Star Online | |
| PSO | Pakistan State Oil | |
| pso | psoriasis | |
| PSO | Polycystic Ovary Syndrome | |
| PSO | Penalty Shoot-Out (football / soccer) | |
| PSO | Pressure Shut Off | |
| PSO | Patient Safety Organization (Rockville, MD) | |
| PSO | Phone Sex Operator | |
| PSO | Power System Operator (various locations) | |
| PSO | Peace and Stability Operations (US Army) | |
| PSO | Princeton Symphony Orchestra (Princeton, NJ) | |
| PSO | Portland Symphony Orchestra (since 1923; Portland, Maine) | |
| PSO | Pedicle Subtraction Osteotomy (neurosurgery) | |
| PSO | Peace Support Operation | |
| PSO | Public Service Obligation (chiefly European) | |
| PSO | Parent Support Organization | |
| PSO | Port Security Officer | |
| PSO | Prozess Standard Offsetdruck (German: Process Standard Offset) | |
| PSO | Pre-Service Orientation (various organizations) | |
| PSO | Principal Scientific Officer | |
| PSO | Professional Services Organization | |
| PSO | Protected Species Observer | |
| PSO | Public Safety Officer | |
| PSO | Project Support Office (project management) | |
| PSO | Provider Sponsored Organization | |
| PSO | Professional Staff Organization (various organizations) | |
| PSO | Provincial Sport Organization (Canada) | |
| PSO | Post Security Officer (US DoD) | |
| PSO | Prohibited Steps Order (UK court order) | |
| PSO | Protocol Supporting Organization (ETSI, IETF, ITU, W3C Consortium) | |
| PSO | Proprietary Security Officer (various companies) | |
| PSO | Philips Symfonie Orkest (Dutch: Philips Symphony Orchestra) | |
| PSO | Poker Source Online (gambling) | |
| PSO | Product Support Office | |
| PSO | Policy Support Officer (various locations) | |
| PSO | Political Science Organization (various locations) | |
| PSO | Public Service of Oklahoma | |
| PSO | Private Sector Operator | |
| PSO | Personal Service Organization | |
| PSO | Post Secondary Option (education) | |
| PSO | Product and Service Offer | |
| PSO | Program Secretarial Officer | |
| PSO | Password Settings Object | |
| PSO | Processing Services Operation (Sprint) | |
| PSO | Peoria Symphony Orchestra (Illinois) | |
| PSO | Partner Solution Offering (Dell) | |
| PSO | Partnership for Sustainable Oceans | |
| PSO | Provisioning Service Object (computing) | |
| PSO | Pantex Site Office (Amarillo, TX) | |
| PSO | Prep Sports Online (high school sports websites) | |
| PSO | Process Sign-Off | |
| PSO | PlayStationOne | |
| PSO | Parcel Shipping Order (various companies) | |
| PSO | Paralegal Society of Ontario | |
| PSO | Pasto, Colombia - Cano (Airport Code) | |
| PSO | Participating Standards Organization | |
| PSO | Publicity Security Officer (US Navy) | |
| PSO | Piano-Shaped Object (shoddily made or badly damaged piano) | |
| PSO | Portsmouth Symphony Orchestra (Portsmouth, OH) | |
| PSO | Procurement Support Office | |
| PSO | Pembroke Symphony Orchestra (Canada) | |
| PSO | Peter Skene Ogden Secondary (school) | |
| PSO | Plan de Sécurité Opérateur (French: Safety Plan Operator) | |
| PSO | Production Sign Off | |
| PSO | Project Safety Officer | |
| PSO | Primary Strike Objective | |
| PSO | Permanent Slow Order (railway) | |
| PSO | Protectseniors.org (Washington, DC lobby) | |
| PSO | Primary Standardization Office | |
| PSO | Practice/Study/Observation (various universities) | |
| PSO | Program Staff Office/Officer | |
| PSO | Provisions Supply Office | |
| PSO | Proud Social Outcast | |
| PSO | Project Step Off | |
| PSO | Preliminary Screening Officer | |
| PSO | Possible Survivable Options | |
| PSO | Payload Sensor Operator | |
| PSO | Policy Service Office (insurance) | |
| PSO | Primary Support Official | |
| PSO | Polysporin Ointment | |
| PSO | Plan for Safe Operation | |
| PSO | Parma Symphony Orchestra (Parma, OH) | |
| PSO | Pandemic Safety Officer (various organizations) | |
| PSO | Phosphino Succinic Oligomer (water treatment chemical) | |
Note: We have 250 other definitions for PSO in our Acronym Attic