What does 関東 mean?
関東 is a Japanese noun meaning “eastern half of Japan, including Tokyo” in English. It can also be translated as “Kantō (eastern half of Japan; during the feudal era)” depending on context. It is written as 関東 in kanji, かんとう in hiragana, and kantou in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
ジョンは関東地区、そして太郎は関西地区を担当している。
John covers the Kanto area and Taro covers the Kansai area.