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What does PSO stand for?

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Rank Abbr.Meaning
psopsoriasis
PSOPublic Service Obligation (chiefly European)
PSOProfessional Services Organization
PSOPublic Safety Officer
PSOProject Support Office (project management)
PSOProvider Sponsored Organization
PSOProvincial Sport Organization (Canada)
PSOProtocol Supporting Organization (ETSI, IETF, ITU, W3C Consortium)
PSOPublic Service of Oklahoma
PSOProgram Secretarial Officer
PSOPassword Settings Object
PSOPeoria Symphony Orchestra (Illinois)
PSOProcess Sign-Off
PSOParalegal Society of Ontario
PSOPasto, Colombia - Cano (Airport Code)
PSOParticipating Standards Organization
PSOPiano-Shaped Object (shoddily made or badly damaged piano)
PSOPortsmouth Symphony Orchestra (Portsmouth, OH)
PSOProcurement Support Office
PSOPembroke Symphony Orchestra (Canada)
PSOPeter Skene Ogden Secondary (school)
PSOPlan de Sécurité Opérateur (French: Safety Plan Operator)
PSOProduction Sign Off
PSOPermanent Slow Order (railway)
PSOPrimary Strike Objective
PSOProject Safety Officer
PSOProtectseniors.org (Washington, DC lobby)
PSOPractice/Study/Observation (various universities)
PSOPrimary Standardization Office
PSOProgram Staff Office/Officer
PSOProvisions Supply Office
PSOProject Step Off
PSOProud Social Outcast
PSOPreliminary Screening Officer
PSOPossible Survivable Options
PSOPayload Sensor Operator
PSOPolicy Service Office (insurance)
PSOPrimary Support Official
PSOParma Symphony Orchestra (Parma, OH)
PSOPolysporin Ointment
PSOPlan for Safe Operation
PSOPlayStationOne
PSOPoker Source Online (gambling)
PSOPersonal Service Organization
PSOPhantasy Star Online
PSOPhone Sex Operator
PSOPort Security Officer
PSOPortland Symphony Orchestra (since 1923; Portland, Maine)
PSOPolitical Science Organization (various locations)
PSOPolycystic Ovary Syndrome
PSOPost Secondary Option (education)
PSOPost Security Officer (US DoD)
PSOPower System Operator (various locations)
PSOPeace and Stability Operations (US Army)
PSOPeace Support Operation
PSOPedicle Subtraction Osteotomy (neurosurgery)
PSOPenalty Shoot-Out (football / soccer)
PSOPatient Safety Organization (Rockville, MD)
PSOParticle Swarm Optimization
PSOPartner Solution Offering (Dell)
PSOPartnership for Sustainable Oceans
PSOParent Support Organization
PSOPakistan State Oil
PSOPantex Site Office (Amarillo, TX)
PSOProcessing Services Operation (Sprint)
PSOProduct and Service Offer
PSOProduct Support Office
PSOProfessional Staff Organization (various organizations)
PSOPrinceton Symphony Orchestra (Princeton, NJ)
PSOPrincipal Scientific Officer
PSOPrivate Sector Operator
PSOPrep Sports Online (high school sports websites)
PSOPressure Shut Off
PSOPre-Service Orientation (various organizations)
PSOProhibited Steps Order (UK court order)
PSOProzess Standard Offsetdruck (German: Process Standard Offset)
PSOProvisioning Service Object (computing)
PSOPublicity Security Officer (US Navy)

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