1. (initialism) .  fullback.
  2. (initialism) .  (military) firebase.
  3. (initialism) .  (internet) Facebook.
  4. (initialism) .  (US, military) fighter-bomber (qualifier, prefix) .
  5. (abbreviation) .  February.

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