English abbreviations from class to clea
- CLASS (Computerised Laser Sight System)
- Class Six (Shoppette where beer, wine & liquor is sold.)
- CLAST (College Level Academic Skills Test)
- CLAT (Common Law Admission Test (India))
- CLAW (Conservation Laborers Against Wrong)
- CLAWR (Cold Lake Air Weapons Range)
- CLAWS (Close combat light armor weapon system (US))
- CLB (Configurable Logic Block)
- CLC (Cholesteric Liquid Crystal)
- CLCC (Ceramic Leaded Chip Carrier)
- CLCD (Contemporary Life Cycle Development)
- CLCGF (Corps Level Computer Generated Force)
- CLCK (Community Learning Classes in Kingsbury)
- CLCM (Cannon Launched Counter Measures)
- CLCS (Center for Literary and Cultural Studies)
- CLCSE (Center for Life Cycle Software Engineering)
- CLD (McClellan–Palomar Airport (FAA: CRQ))
- CLDD (Complex Learning Difficulties And Disabilities)
- CLE (Cleveland Hopkins International Airport)
- CLEA (Capilano Ladies Evening Auxiliary)
