boo

  1. Interjection.  A loud exclamation intended to scare someone, especially a child. Usually used when one has been hidden from the victim and then suddenly appeared unexpectedly.
  2. Interjection.  A word used ironically in a situation where one might have scared someone, but said someone was not scared. Not said as loudly as in definition 1.
  3. Interjection.  An exclamation used by a member of an audience, as at a stage play or sports game, to indicate derision or disapproval of what has just occurred.
  4. Noun.  A derisive shout made to indicate disapproval.
  5. Noun.  (US, slang) A close acquaintance or significant other, derived from French beau.
  6. Verb.  (intransitive) To shout extended boos derisively.
  7. Verb.  (transitive) To derisively shout extended boos at.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license.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