noun

• Initialism of characters per inch.
• (graphic design, typography) The measure of a number of typeset font characterss per inch used or supported by a digital display device
• (computing) The measure of characters that can be stored in each inch of magnetic tape
• Initialism of Consumer Price Index.
• Initialism of crash position indicator (“a deployable type of Emergency Locator Transmitter”).
• (marketing) Initialism of cost per install (“pricing model for mobile app campaigns”).
• (Indian politics) Initialism of Communist Party of India, a political party.