What does 愛人 mean?
愛人 is a Japanese noun meaning “lover, mistress” in English. It is written as 愛人 in kanji, あいじん in hiragana, and aijin in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
ここだけの話だが、彼には愛人がいる。
Between ourselves, he keeps a mistress.