| Acronym | Meaning |
| UNCLOS | United Nations Convention On The Law Of The Sea |
| LER | Loss-Exchange Ratio |
| SAWE | Society Of Allied Weight Engineers |
| EWR | Newark Liberty International Airport (IATA Airport Code) |
| ZS | Zeptosecond |
| BC | Before Christ - Blind Copy (in Emailers) - Boston College -Botswana (FIPS 10-4 Country Code; From Bechuanaland) - British Columbia (postal Symbol) |
| SCRAM | Safety Control Rod Axe Man |
| DTO | Disruptive Technology Office (was ARDA) |
| SMR | San Marino (ISO 3166 Trigram) |
| DCAS | Devon And Cornwall Archery Society |