fourth

  1. Noun.  The Fourth of July.
  2. Adjective.  The ordinal form of the number four.
  3. Noun.  (''not used in the plural'') The person or thing in the fourth position.
  4. Noun.  A quarter, one of four equal parts of a whole.
  5. Noun.  (''not used in the plural'') The fourth gear of an engine.
  6. Noun.  (music) A musical interval which spans four degrees of the diatonic scale, for example C to F (C D E F).

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.