This is the 359th most frequent Greek word.
πολιτικό
"Πολιτικό" in English means "political."
The word 'πολιτικός' is used here as a noun meaning 'politician'.
Ο πολιτικός έκανε μια ενδιαφέρουσα ομιλία.
The politician gave an interesting speech.
The word 'πολιτική' is used as an adjective meaning 'political'.
Αυτή είναι μια πολιτική απόφαση.
This is a political decision.
In this sentence, 'πολιτική' is part of a compound noun translating to 'political science'.