This is the 2167th most frequent Japanese word.
東部
"East part" or "Eastern region."
The term '東部' (tōbu), meaning 'eastern part', is used here to refer specifically to a region in Japan, indicating geographical orientation.
日本の東部には美しい自然が多く見られます。
In the eastern part of Japan, beautiful nature can often be seen.
Here, '東部' (tōbu) refers to a designated eastern area relevant to the described development project, emphasizing a specific operational scope.
彼は東部開発プロジェクトのリーダーを務めています。
He serves as the leader of the eastern development project.
In this sentence, '東部' (tōbu) is used to refer to the eastern district or section of a city, denoting a localized segment within the urban area.