| Acronym | Meaning |
 | SIN | Sinhalese Language (ISO 639-2 Code) |
| TCAA | Top Counter-Assault Agents |
| FDA | Food And Drug Administration (U.S.) |
| ETC/RMT | Explosive Transient Camera/Rapidly Moving Telescope |
| ESH | Western Sahara (ISO 3166 Trigram) |
| OVC | Overcast (METAR Code) |
| UBS | Unbundled Bitstream Services - United Bank Of Switzerland - United Banque Suisse |
| OC | Observer/Controller |
| LLGC | Llyfrgell Genedlaethol Cymru (National Library Of Wales) - London Lesbian And Gay Centre |
| TTTEAF | Thomas The Tank Engine And Friends |
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