This is the 447th most frequent Czech word.
republice
"Republice" means "republic" in English, in the locative or dative case.
The word "republice" is in the locative case, which is used here to indicate the location where people reside.
V České republice žije přes 10 milionů obyvatel.
In the Czech Republic, over 10 million inhabitants live.
Here "republice" is again in the locative case, referring to the nation in which someone resides and feels pride.
Hrdý na to, žít v této republice.
Proud to live in this republic.
The word "republice" is in the locative case, indicating the general location context of the trip.