Definition of INDEX

index

Meanings

Plural: index's, indexes, indices

Noun

  • a numerical scale used to compare variables with one another or with some reference number
  • a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
  • a mathematical notation indicating the number of times a quantity is multiplied by itself
  • an alphabetical listing of names and topics along with page numbers where they are discussed
  • the finger next to the thumb
  • An alphabetical listing of items and their location.
  • The index finger; the forefinger.
  • A movable finger on a gauge, scale, etc.
  • A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.
  • That which points out; that which shows, indicates, manifests, or discloses.
  • A sign; an indication; a token.
  • A type of noun where the meaning of the form changes with respect to the context; e.g., 'Today's newspaper' is an indexical form since its referent will differ depending on the context. See also icon and symbol.
  • A single number calculated from an array of prices or of quantities.
  • A number representing a property or ratio; a coefficient.
  • A raised suffix indicating a power.
  • An integer or other key indicating the location of data, e.g. within an array, vector, database table, associative array, or hash table.
  • A data structure that improves the performance of operations on a table.
  • The number of cosets that exist.
  • A prologue indicating what follows.

Verb

  • list in an index
  • provide with an index
    • "index the book"
  • adjust through indexation
    • "The government indexes wages and prices"
  • To arrange an index for something, especially a long text.
  • To inventory; to take stock.
  • To normalise in order to account for inflation; to correct for inflation by linking to a price index in order to maintain real levels.
  • To measure by an associated value.
  • To be indexical for (some situation or state of affairs); to indicate.
  • To access a value in a data container by an index.
  • To use a mechanism to move an object to a precise location.

Origin / Etymology

From Latin index (“a discoverer, informer, spy; of things, an indicator, the forefinger, a title, superscription”), from indicō (“point out, show”); see indicate.

Synonyms

arrow-finger, demonstrator, exponent, first finger, forefinger, index, index finger, index number, indicant, indicator, lickpot, manicule, pointer, pointer finger, pointling, power, showing finger, teacher, trigger finger

Scrabble Score: 13

index is a valid Scrabble (US) TWL word
index is a valid Scrabble Word in Merriam-Webster MW Dictionary
index is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 14

index is a valid Words With Friends word