indexing

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 be indexical for (some situation or state of affairs); to indicate.

To access a value in a data container by an index.

A system used to assign indexes.

“In zero-based indexing, array variables in a computer program are numbered upwards from zero.”