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Installment vs Undefined - What's the difference?

installment | undefined |

As a noun installment

is the act of installing; installation or installment can be 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, eg mensual) being often definitely stipulated.

As an adjective undefined is

lacking a definition or value.

installment

English

Alternative forms

* instalment (Commonwealth)

Etymology 1

From install, itself from (etyl) installer, from installare, from (etyl) in- + ML stallum 'stall' (from Germanic stal, see below)

Noun

(en noun)
  • The act of installing; installation.
    • Take oaths from all kings and magistrates at their installment , to do impartial justice by law. Milton.
  • (obsolete) The seat in which one is placed.
    • The several chairs of order, look, you scour; . . . Each fair installment , coat, and several crest With loyal blazon, evermore be blest. Shakespeare.
    Synonyms
    * investiture, investment * installation

    Etymology 2

    A 1732 alteration of (estallment), from (etyl) : The sense of "part of a whole produced in advance of the rest" is from 1823.

    Noun

    (en 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.
  • a part of a broadcast or published serial.
  • anything that is performed in parts, spread in time
    • Usage notes
    For this sense in the UK, the OED permits only the spelling instalment . Commonwealth usage varies.
    Synonyms
    * (portion of a debt) * (part of a broadcast or published serial) episode, part

    References

    * * * [http://www.etymonline.com/index.php?search=installment+&searchmode=none]

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined