| Acronym | Definition |
|---|
| PSUB➣Packed Subtract |
| PSUB➣Purdue Student Union Board (Purdue University) |
| PSUB➣Personal Submersible (homebuilt experimental submarine) |
| PSUB➣Piston-Supported Upper Bearing |
| PSUB➣Penguin Student Union Building (Clark College; Vancouver, WA) |