This is the 8932nd most frequent Japanese word.
氏家
"氏家" (Ujiie) is a Japanese surname.
Here, '氏家' is used as a surname, addressing a specific person's last name.
氏家先生は歴史に詳しいです。
Mr. Ujiie is knowledgeable about history.
In this sentence, '氏家' refers to the family name, indicating familial relation or membership.
彼は氏家家族になりました。
He joined the Ujiie family.
Here, '氏家' is used to name a geographic location, indicating a region or area.