"installment" in the noun sense
a payment of part of a debt usually paid at regular intervals
2. episode, installment, instalment
a part of a broadcast serial
3. installment, instalment
a part of a published serial
4. installation, installing, installment, instalment
the act of installing something (as equipment
"the telephone installation took only a few minutes"
Source: WordNet® (An amazing lexical database of English)
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