This is the 452nd most frequent Japanese word.
知事
Governor.
In this sentence, "知事 (chiji)" is used to refer to a governor, indicating a person in a position of administrative authority over a region.
知事は新しい政策を発表しました。
The governor announced a new policy.
Here, "知事 (chiji)" specifies which governor is being discussed, emphasizing their role in decision-making.
その知事は公共事業を増やす計画を立てています。
The governor is planning to increase public works.
This sentence uses "知事 (chiji)" in a generalized manner, discussing the responsibilities of all governors collectively in Japan.