The Four Cs of Diamonds: Cut, Clarity, Color, Carat

The Five Cs of Cinematography: Camera angles, Continuity, Cutting, Close-ups, Composition

The Six Cs of the Arizona Wing Civil Air Patrol: Calm Down, Climb, Communicate, Confess, Comply, Conserve

The Seven Cs of Bowling: Comfort, Concentration, Control, Consistency, Confidence, Communication