What does 替える mean?
替える is a Japanese verb meaning “to exchange, to interchange, to substitute” in English. It can also be translated as “to exchange, to substitute (person, staff member, player, etc.)” depending on context. It is written as 替える in kanji, かえる in hiragana, and kaeru in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
お花の水を替えましょう。
Shall I change the water for the flowers?