| Acronym | Definition |
|---|
| PYB➣Protect Your Bubble |
| PYB➣Plas Y Brenin (UK) |
| PYB➣Pittsburgh Youth Ballet (Pittsburgh, PA) |
| PYB➣Post Your Book (student expression) |
| PYB➣Pacific Youth Bureau (South Pacific Commission) |
| PYB➣Pick Your Brain |
| PYB➣Posey Yuppie Biker |
| PYB➣Posey Yuppie Bastard (aka RUB) |
| PYB➣Pennzoil Yellow Bottle (automotive oil) |