What does 地上 mean?
地上 is a Japanese noun meaning “above ground; on the ground; earth's surface” in English. It can also be translated as “this world” depending on context. It is written as 地上 in kanji, ちじょう in hiragana, and chijou in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
B2出口から地上に出てください。
Go up to ground level at exit B2.