| Acronym | Definition |
|---|
| PBU➣Philadelphia Biblical University (Langhorn, PA) |
| PBU➣Proxy Binding Update (mobile communications) |
| PBU➣Pass Break Up (football) |
| PBU➣Predominantly Black University |
| PBU➣Previously Banned User (forums) |
| PBU➣Pressure Build-Up |
| PBU➣Polimorfismo de Base Unica (Spanish: Single Nucleotide Polymorphism) |
| PBU➣Producer Business Unit |
| PBU➣Partys-Bei-Uns (Partys-by-us) |
| PBU➣Passenger Business Unit |
| PBU➣Periodic Building Unit |
| PBU➣PaintBallersUnit |
| PBU➣Photo Blow-Up |
| PBU➣Period of Beneficial Use |
| PBU➣Premature Babies Unit |
| PBU➣Project Barito Ulu (Cambridge University; UK) |