| Acronym | Meaning |
 | LHC | Large Hadron Collider |
| YC | Yoctocoulomb |
| JREF | James Randi Educational Foundation |
| YM | Yoctometre |
| PMOS | P-type/Positive Metal-Oxide-Semiconductor Transistor (pee-moss) |
| TTP | Tactics |
| EST | Estonian Language (ISO 639-2 Code) |
| PA | Pascal - Protactinium |
| CPSM | Continuous Phase Shift Modulation |
| BSD | Bahamian Dollar (ISO 4217 Currency Code) -Berkeley Software Distribution (distinct From BSoD) |
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