This is the 86th most frequent Czech word.
době
"Době" means "time" or "period" (dative or locative case) in English.
"Doba" signifies "time" or "period", and "době" is in the locative case, denoting "at that specific time."
V této době byla situace velice náročná.
At this time, the situation was very challenging.
Here, "době" is used in the locative case to specify the period in question in the context of living.
Zamyslíme se o době, ve které žijeme.
Let us reflect on the time in which we live.
In this case, "době" again refers to a time period but emphasizes the difficulty of action contemplated during this specific time.