Your abbreviation search returned 115 meanings
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| Rank Abbr. | Meaning | |
|---|---|---|
| OP | Original Poster | |
| OP | Original Poster (internet newsgroups and message boards) | |
| OP | Other People | |
| OP | One Piece (Anime) | |
| OP | Opinion | |
| OP | Ocean Pacific | |
| OP | Opera | |
| OP | Out of Print | |
| OP | Output | |
| OP | Office of the President | |
| OP | Opportunity (Ads) | |
| OP | Optical | |
| OP | Output (Hyper Logo command) | |
| OP | Office Professional | |
| OP | Oak Park (Illinois) | |
| OP | Operator (IRC) | |
| OP | Opus (Latin: A Work; used in referring to music) | |
| OP | Opposite (volleyball position) | |
| OP | Output Power | |
| OP | Organized Play (gaming) | |
| OP | Outpost (gaming) | |
| OP | Operating Profit | |
| OP | Order of Preachers (Roman Catholicism; Dominican) | |
| OP | Overland Park (Kansas) | |
| OP | Old Patient | |
| OP | Oral Presentation | |
| OP | Outpatient | |
| OP | Osteoporosis | |
| OP | Off-Peak (time) | |
| OP | Operating Procedure(s) | |
| OP | Overpowered (gaming) | |
| OP | Opening Post (internet message boards) | |
| OP | Order Processing | |
| OP | Outreach Program | |
| OP | One Power (Wheel of Time series) | |
| OP | Olympic Peninsula (Washington) | |
| OP | Office of Policy (Social Security) | |
| OP | Optimus Prime (Leader of the Autobots, icon of the 80s) | |
| OP | Operating Pressure | |
| OP | Operator Panel | |
| OP | Oil Pulling | |
| OP | Opposing Party (legal notation and billing) | |
| OP | Observation Point | |
| OP | Organophosphate (insecticide) | |
| OP | Office Productivity (course) | |
| OP | Optical Power | |
| OP | Orifice Plate (flowmeters) | |
| OP | Order of Precedence | |
| OP | Observation Post | |
| OP | Osuuspankki (Finnish banking cooperative) | |
| OP | Operationssaal (German: Operating Room) | |
| OP | Original Production | |
| OP | Open Pollinated (botany) | |
| OP | Organophosphorus (pesticide) | |
| OP | Old Persian (linguistics) | |
| OP | Oropharynx (anatomy) | |
| OP | Osmotic Pressure | |
| OP | Operation Phoenix (San Bernadino, CA after school program) | |
| OP | Operating Plan | |
| OP | Overly Powerful | |
| OP | Oxidative Phosphorylation | |
| OP | Opportunities Page (CECOM) | |
| OP | Operational Priority (US Navy) | |
| OP | Offensive Power (online gaming) | |
| OP | Operations Order | |
| OP | Ordinis Praedicatorum (Latin: Order of Preachers) | |
| OP | Ordo Praedicatorum (Latin: Order of Preachers; formal name of Dominicans, a Catholic religious institution) | |
| OP | Orthographic Projection | |
| OP | Over Powered (gaming) | |
| OP | Operations Procedures | |
| OP | Ordnance Personnel (US Navy) | |
| OP | Oxygen Pressure | |
| OP | Outpatient Pharmacy | |
| OP | Operational Program | |
| OP | Other Procurement | |
| OP | Original Pack (pharmacology) | |
| OP | Order Point | |
| OP | Operation Officer (Navy) | |
| OP | Occiput Posterior (fetal position) | |
| OP | Oil Purifier | |
| OP | Operational Picture | |
| OP | Order of the Pelican (Society for Creative Anachronism) | |
| OP | Osteitis Pubis | |
| OP | Operation Point | |
| OP | Opponens Pollicis | |
| OP | Ouvrier Professionnel (French: Professional Worker) | |
| OP | Optional Procedure | |
| OP | Oral Production (test) | |
| OP | Occupation Permit (Hong Kong) | |
| OP | Operations Panel | |
| OP | Olden Polynice (basketball player) | |
| OP | Originating Party | |
| OP | Oligodendrocyte Progenitor | |
| OP | Operation/Operational | |
| OP | Operation Register | |
| OP | Over-Proof (of alcohol) | |
| OP | Opacity Project | |
| OP | Oral Participation | |
| OP | Outsource Philippines | |
| OP | Optimal Partitioning (sectorization method) | |
| OP | Orbit Prediction | |
| OP | Operator Personal | |
| OP | Operator-Promoter | |
| OP | Orbiter Payload | |
| OP | Orienteering Problem | |
| OP | Ordnance Pamphlet | |
| OP | Ohjelmointiputka (Finnish programming site) | |
| OP | Outpicked (gaming) | |
| OP | Ordnance Publication | |
| OP | Operational Phase/Project | |
| OP | Dominican Sisters of Divine Providence (religious order) | |
| OP | Opponents Pollicis | |
| OP | Overnight Per Diem | |
| OP | Overlap Pulsing | |
| OP | Over Provisioning (computing) | |
Note: We have 29 other definitions for OP in our Acronym Attic