This is the 4350th most frequent Japanese word.
千代田
"千代田" (Chiyoda) refers to a place name in Japan, often associated with the Chiyoda ward in central Tokyo, meaning "field of a thousand generations."
The term '千代田' refers to a geographical location, specifically a ward in Tokyo, Japan, named Chiyoda.
千代田区には皇居があります。
The Imperial Palace is located in Chiyoda Ward.
Here '千代田' is used as part of a proper noun '千代田公園', indicating the name of a park.
千代田公園に桜の花が満開です。
Cherry blossoms are in full bloom at Chiyoda Park.
In this usage, '千代田' is used as a surname for a person.