- Noun. The act of installing; installation.
- Noun. (obsolete) The seat in which one is placed.
- Noun. A portion of a debt, or sum of money, which is divided into portions that are made payable at different times. Payment by installment is payment by parts at different times, the amounts and times (often equal namely regular, e.g. mensual) being often definitely stipulated.
- Noun. a part of a broadcast or published serial.
- Noun. anything that is performed in parts, spread in time.