| Term | Full Form | Definition | Meaning | Main Category | Subcategory | Country/ Region | Popularity |
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| PP | Peak-to-Peak | Academic & Science › Electronics |  |
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| PP | Point-to-Point | Technology › Communication | |
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| PP | Public Prosecutor | Governmental › Law & Legal |  |
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| PP | Progressive Party | Governmental › Politics |  |
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| pp | Length Between Perpendiculars | Transport & Travel › Water Transport | |
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| PP | Pancreatic Polypeptide | Medical › Biochemistry | |
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| pp | Per Procurationem | Governmental › Law & Legal | |
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| pp | Pianissimo | Media & Entertainment › Music | |
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| PP | PrePaid | Business › Trade | |
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| Pp | Process Performance | Business › Business Terms | |
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| PP | Piston Pump | Academic & Science › Engineering | |
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| PP | Porozumienie Polskie | Governmental › Politics |  |
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| PP | Puranpur Railway Station | Transport & Travel › Railway Station Codes | |
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| PP | Punjab Police | Governmental › Police | |
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| PP | Pure Pwnage | Media & Entertainment › TV & Radio | |
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| PPA | Power Purchase Agreement | Academic & Science › Electrical | |
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| PPA | Professional Photographers of America | Associations & Organizations › Trade Associations | |
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| PPA | Polyphthalamide | Academic & Science › Chemistry | |
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| PPA | Phosphoric Acid | Academic & Science › Chemistry | |
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| PPA | Personal Package Archive | Computing › Software & Applications | |
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| PPA | Participatory Poverty Assessment | Governmental › Census & Statistics | |
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| PPA | Pension Protection Act | Governmental › Rules & Regulations |  |
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| PPA | Philippine Ports Authority | Governmental › Departments & Agencies |  |
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| PPA | Patch Panel Antenna | Technology › Tech Terms | |
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| PPA | Pingat Pentadbiran Awam | Governmental › Military |  |
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