Index Definition

ĭndĕks
indexed, indexes, indexing, indices
noun
indexes
Something that serves to guide, point out, or otherwise facilitate reference, especially:
American Heritage
Webster's New World
A pointer or indicator, as the needle on a dial.
Webster's New World
A character (☛) used in printing to call attention to a particular paragraph or section.
American Heritage
A sign  calling attention to something; fist.
Webster's New World
verb
indexed, indexes, indexing
To be an index, or sign, of; indicate.
Webster's New World
To adjust (wages, interest rates, etc.) automatically to changes in the cost of living.
Webster's New World
To adjust through indexation.
American Heritage
To make an index of or for.
Webster's New World
To include in an index.
Webster's New World
Antonyms:
pronoun

A town in Washington.

Wiktionary
An unincorporated community in West Virginia.
Wiktionary

Other Word Forms of Index

Noun

Singular:
index
Plural:
indices, indexes

Origin of Index

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

    From Wiktionary

  • Middle English forefinger from Latin deik- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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