| Acronym | Meaning |
 | ABA | American Bar Association - American Basketball Association - American Beverage Association - American Bicycle Association - American Birding Association - Australian Broadcasting Authority |
| LAT | Lowest Astronomical Tide (nautical Charts) |
| MIA | Missing In Action |
| TTO | Trinidad And Tobago (ISO 3166 Trigram) |
| CNR | Canadian National Railway - Combat Net Radio |
| ACUF | BGN Advisory Committee On Undersea Features |
| MPA | Megapascal |
| SPM | Saint Pierre And Miquelon (ISO 3166 Trigram) |
| SAW | Squad Automatic Weapon - Surface Acoustic Wave |
| NI | Nicaragua (ISO 3166 Digram) - Nigeria (FIPS 10-4 Country Code) |
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