SEC (disambiguation)
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SEC is a TLA which can refer to:
- In general context, an abbreviation for second.
- In mathematics and geometry, an abbreviation for secant.
- Securities and Exchange Commission
- Singapore Environment Council
- Southeastern Conference
- Space Environment Center
- single error correction (see error correcting code)
- Single Edge Connect
- State Examinations Commission, Ireland
- State Electricity Commission, Victoria, Australia (defunct)
- Size Exclusion Chromatography
- Shielks Elite Commandos
- Simple Electronic Computer, a computer from about 1950