AEONS

• A long, long time

• Ages

• Ages and ages

• Ages and ages (Var.)

• Ages and ages and ages

• Almost an eternity

• Almost eternity

• Big stretches

• Big times

• Billion-year spans

• Billions of years

• Blue moons

• Eternities

• Eternities: var.

• Forever and ever

• Forever, or close to it

• Forever, seemingly

• Geologic spans

• Geologic time periods

• How long it takes mountains to form

• Incredibly long stretches

• Incredibly long stretches (Var.)

• Light-years

• Long stretches

• Long time

• Long time periods

• Many moons

• Millennia on end

• Millennia upon millennia

• Milord's millennia

• Near eternity

• Near-eternities

• Seemingly forever

• The time it takes mountains to rise

• They comprise eternities

• Time immemorial

• Time it takes mountains to form

• Time on end

• Time periods

• Time spent in line, seemingly

• Time without end

• Umpteen years

• Untold centuries

• Very long time

• What evolution might be measured in

• Years and years

• Years upon years