bimillenary /bī-milˈi-nə-ri/

1. A period of 2000 years
2. A 2000th anniversary

1. Happening every 2000 years
2. Relating to a 2000th anniversary

• extradites
• extraditing
• extradition
• extraditions
• extrados
• extradoses
• extradotal
• extradural
• extrafloral
• extraforaneous
• extragalactic
• extra-illustrate
• extra-illustrated
• extra-illustrates
• extra-illustrating
• extra-illustration
• extra-illustrations
• extrait
• extraits
• extra jam
• extra jams
• extrajudicial
• extrajudicially
• extralimital
• extralimitary