English abbreviations from pud to pun
- PUD (Proved Undeveloped Reserves)
- PUECN (Purdue University Engineering Computer Network)
- PUF (Pau Pyrénées Airport)
- PUFA(s) (polyunsaturated fatty acid(s))
- PUFC (People United For Christ)
- PUFF (People United for Fun and Friendship)
- PUG (PET Users Group)
- PUHCA (Public Utility Holding Company Act of 1935 (US) (electricity))
- PUI (Purini Airport)
- PUJ (Punta Cana International Airport)
- PUK (Pukarua Airport)
- PUKE (Prevention, Understanding, Knowledge, and Education)
- PUL (Port of Poulsbo Marina Moorage Seaplane Base (FAA: 83Q))
- PULSAR (People Utilizing The Leadership Of Students At Risk)
- PULSE (Pittsburgh United For Life Savings Emergency)
- PUM (Potentially Unwanted Modification)
- PUMA (Parallel Unstructured Maritime Aerodynamics)
- PUMAS (NASA's Practical Uses of Math And Science)
- PUMCINs (Professional Urban Middle Class in Nice Suburbs)
- PUMP (Portland United Mountain Pedalers)
- PUN (Pull-Up Network)