United States Abbreviations and Acronyms
- SEALSUnited States Navy Seals
- SECSecurities and Exchange Commission (US)
- SECDEFUnited States Secretary of Defense
- SECNAVUnited States Secretary of the Navy
- SECTStudents for The Empowerment of Charlottesville Teens
- SEEGillespie Field, San Diego/El Cajon, California, United States
- SEEDStudents Educating and Empowering for Diversity
- SEEDStudent Entrepreneurs for Economic Development
- SEFSebring Regional, Sebring, Florida, United States
- SEGPenn Valley Airport, Selinsgrove, Pennsylvania, United States
- SEMCraig AFB, Selma, United States
- SFBOrlando Sanford International Airport, Sanford, Florida, United States
- SFCSergeant First Class (E-7)
- SFEISSupplemental Final Environmental Impact Statement (US)
- SFFFelts Field, Spokane, Washington, United States
- SFMSanford Regional Airport, Sanford, Maine, United States
- SFOSan Francisco International Airport, San Francisco, California, United States
- SFRSan Fernando Airport, San Fernando, California, United States
- SFSUSan Francisco State Univdrsityrsity
- SFSUSan Francisco State University
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