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

• rushees
• rushen
• rusher
• rushers
• rushes
• rush-grown
• rush holder
• rush holders
• rush hour
• rush-hour
• rush hours
• rushier
• rushiest
• rushiness
• rushinesses
• rushing
• rushlight
• rushlights
• rushlike
• rush one's fences
• rush ring
• rush rings
• rushy
• rushy-fringed
• rusine