| Acronym | Meaning |
| ACT | R -ACT-Rational (cognitive Model) |
| WAAC | Women's Army Auxiliary Corps (WWII UK) |
| WG | Working Group - Wade-Giles |
| YO | Yoruba Language (ISO 639-1 Code) |
| WCL | World Confederation Of Labour |
| EF | Exafarad |
| JTAGS | Joint Tactical Ground Station (djay-tagz) |
| TUK | Turkmen Language (ISO 639-2 Code) |
| LISA | Laser Interferometer Space Antenna |
| IE | Interlingue Language (ISO 639-1 Code) |