English abbreviations from probe to prp
- PROBE (Personal Research On Basically Everything)
- PROBSUB (Probable Submarine)
- PROC (Puerto Rican Operations Center)
- PROCESS (Participation Responsibility Openness Commitment Experimentation Sensitivity Sense)
- PROD (Production Log)
- Prof. (Professus, Professio, Professor ("Professed", "Profession", "Professor"))
- PROF (Professor)
- PROFIS (Professional Filler System)
- PROFOCA (Professional Foreign Correspondents Association)
- PROFS (Professional Office System)
- PROG (Progression)
- PROGRESS (Personal Responsibility and Opportunities to Gainfully Reach Economic Self Sufficiency)
- PROI (Professional Role Orientation Inventory)
- PROI-PT (Professional Role Orientation Inventory for Physical Therapists)
- PROLOG (Programming in Logic)
- PROM (Promenade)
- PROMMA (PROfessional Mixed Martial Arts)
- PROP (Propeller)
- Prop. Fid. (Propaganda Fide (Congregation of the Propaganda, Rome))
- PROPIN (Caution - Proprietary Information Involved)
- Proplyd ((celestial object) Protoplanetary Disk)
- Propr. (Proprium ("Proper" Breviary))
- Pror. (Procurator)
- PROS (Propulsion Subsystem)
- PROSPER (People Reaching for Opportunities to Succeed Personally, Educationally, and Realistically)
- PROT (Protection)
- PROTE (Production Test Report)
- PROTECT (Pagans Reaching Out To Educate the Campus Together)
- PROTO (Prototype)
- PROUD (Pontiac Redeveloping Our United Downtown)
- Prov. (Provisio, Provisum ("Provision", "Provided"))
- PROVORG (Providing Organization)
- PROX (Proximity Log)
- PRP (Personnel Reliability Program (screening and monitoring of individuals with access to "special" weapons))
