| Acronym | Meaning |
 | OSIA | (U.S.) On-Site Inspection Agency |
| FAAN | Fellow Of The American Academy Of Nursing |
| APR | Annual Percentage Rate |
| OSA | Order Of St. Augustine |
| NARAL | National Abortion Rights Action League |
| MEC | Maine Central Railroad (AAR Reporting Mark) - Manta |
| LASER | Light Amplification By Stimulated Emission Of Radiation (cf. Maser) |
| SHN | Saint Helena (ISO 3166 Trigram) |
| TFMPP | Trifluorophenylmethylpiperazine |
| NSG | National System For Geospatial-Intelligence |
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