- Computer glossary: Computer Aided Software Testing or CAST Tool
- In theoretical astrophysics and Quantum Physics , CAST (axion Observatory) is an axion detector built to search for axions produced inside the Sun.
- In Cryptography , CAST-128 (alternatively CAST5) is a Block Cipher .
- Curriculum Advice and Support Team, renamed to Scottish Further Education Unit .
- CAST, or the 'Creative Arts Shoestring Theatre' is a small theatre in Hickory, NC.
- Contractor Assessment Security Tool—Core Set of Security Requirements for External Business Partners—Centers for Medicare & Medicaid Services (CMS) (http://www.cms.hhs.gov/)
- CAST (osine '''A'''ll '''S'''ine '''T'''angent), a Trigonometry Mnemonic used to memorise the positive trigonometric functions in each quadrant of a circle (starting with quadrant IV and continuing counter-clockwise)
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