SQ

SQ may stand for:

Albanian language (ISO 639 alpha-2)
Squadron
Square (algebra), especially measures of area, such as square foot (sq ft)
Singapore Airlines, the IATA airline designator for
United States Academic Decathlon has an event called Super Quiz
Sûreté du Québec, the Quebec police force
Scalar Quantizer, which has something to do with Tate-II SQ Decoder's, which Dolby_Pro_Logic (DPLII) was based upon
Quadraphonic matrix system from Columbia Records', used in the 1970s

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