Meaning

• Noun

  1. An alphabetical listing of items and their location.
  2. The index finger; the forefinger.
  3. A movable finger on a gauge, scale, etc.
  4. A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.
  5. That which points out; that which shows, indicates, manifests, or discloses.
  6. A sign; an indication; a token.
  7. 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.
  8. A single number calculated from an array of prices or of quantities.
  9. A number representing a property or ratio; a coefficient.
  10. A raised suffix indicating a power.
  11. An integer or other key indicating the location of data, e.g. within an array, vector, database table, associative array, or hash table.
  12. A data structure that improves the performance of operations on a table.
  13. The number of cosets that exist.
  14. (obsolete) A prologue indicating what follows.

• Verb