All or Tide alternative (3)
I believe the answer is:
era
(Other definitions for era that I've seen before include "Long period of time" , "Epoch, period" , "Long period of history" , "Age marked by a distinctive character" , "Period, age" .)
I believe the answer is:
era
(Other definitions for era that I've seen before include "Long period of time" , "Epoch, period" , "Long period of history" , "Age marked by a distinctive character" , "Period, age" .)