once

  1. Adverb.  (context, frequency) One and only one time.
  2. Adverb.  (context, temporal location) Formerly; during some period in the past.
  3. Adverb.  (mathematics) multiplied by one: indicating that a number is multiplied by one.
  4. Conjunction.  As soon as; when; after.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license.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.