index🔊

An alphabetical listing of items and their location.

The index finger; the forefinger. +

A movable finger on a gauge, scale, etc.

(typography) 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.

(linguistics) 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.

(economics) A single number calculated from an array of prices or of quantities.

(science) A number representing a property or ratio; a coefficient.

(mathematics) A raised suffix indicating a power.

(databases) An integer or other key indicating the location of data, e.g. within an array, vector, database table, associative array, or hash table.

(databases) A data structure that improves the performance of operations on a table.

(index of a subgroup) The number of cosets that exist.

(obsolete) A prologue indicating what follows.

To arrange an index for something, especially a long text.

To inventory; to take stock.

(economics) 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.

(computing) To access a value in a data container by an index.

To use a mechanism to move an object to a precise location.