What does 水蒸気 mean?
水蒸気 is a Japanese noun meaning “water vapor, steam” in English. It is written as 水蒸気 in kanji, すいじょうき in hiragana, and suijouki in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
熱は水を水蒸気に変える。
Heat turns water into steam.