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or instalment

[in-stawl-muh nt] /ɪnˈstɔl mənt/
any of several parts into which a debt or other sum payable is divided for payment at successive fixed times:
to pay for furniture in monthly installments.
a single portion of something furnished or issued by parts at successive times:
a magazine serial in six installments.
Origin of installment1
1725-35; in-2 + obsolete (e)stallment, equivalent to estall to arrange payment on an installment plan (perhaps < Anglo-French) + -ment
Related forms
reinstalment, noun


or instalment

[in-stawl-muh nt] /ɪnˈstɔl mənt/
the act of installing.
the fact of being installed; installation.
First recorded in 1580-90; install + -ment Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for installment
Contemporary Examples
Historical Examples
  • Once he got a catalogue from an installment house, and tried to hide it from her.

    K Mary Roberts Rinehart
  • That magazine had the first installment of "Brigands of the Moon" in it.

  • I am reproducing with this chapter several of the installment cards.

    Secret Armies John L. Spivak
  • He—he bought a diamond from me this morning—on the installment plan!

    The Cross-Cut

    Courtney Ryley Cooper
  • Money for your personal expenses is to be advanced, and here is an installment.

    Down the Slope James Otis
Word Origin and History for installment

"act of installing," 1580s, from install + -ment. Meaning "arrangement of payment by fixed portions at fixed times" is from 1732, alteration of Anglo-French estaler "fix payments," from Old French estal "fixed position," from Old High German stal "standing place" (see stall (n.1)). Figurative sense of "part of a whole produced in advance of the rest" is from 1823.

Online Etymology Dictionary, © 2010 Douglas Harper
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