This is the 10331st most frequent Japanese word.
首府
Capital city.
Here, '首府' is used to refer to the principal city or administrative center in a prefecture.
京都は京都府の首府です。
Kyoto is the capital of Kyoto Prefecture.
In this sentence, '首府' indicates 'capital city,' emphasizing its role as a central location.
彼は首府で働いています。
He works in the capital city.
'首府' here denotes the main administrative city of a nation.