noun (n)

• a militant organization of Irish nationalists who used terrorism and guerilla warfare in an effort to drive British forces from Northern Ireland and achieve a united independent Ireland(noun.group)

  Synonym:
  irish republican army, provisional ira, provisional irish republican army, provos
  

  source: wordnet30
• a retirement plan that allows you to contribute a limited yearly sum toward your retirement; taxes on the interest earned in the account are deferred(noun.cognition)

  Synonym:
  individual retirement account
  

  source: wordnet30
• belligerence aroused by a real or supposed wrong (personified as one of the deadly sins)(noun.act)

  Synonym:
  anger, ire, wrath
  

  source: wordnet30