愛人|あいじんaijin[0]heiban (flat)
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- nounlover; mistressここだけの話だが、彼には愛人がいる。↗Between ourselves, he keeps a mistress.
- Synonym恋人こいびとNeutralA neutral, general word for a boyfriend or girlfriend. 「愛人」 in modern usage usually means an extramarital lover and carries a negative shade.
- Synonym情人じょうじんWrittenWritten and old-fashioned: one's beloved, or a male or female paramour. In modern Japanese 「愛人」 typically means an extramarital lover.
- Related思い者おもいものWrittenWritten and archaic: a sweetheart or a favored concubine. 「愛人」 is the common modern word for an extramarital lover.
In modern Japanese 「愛人」 usually means an extramarital lover, so it is not to be confused with the Chinese word 爱人. For an ordinary boyfriend or girlfriend, say 「恋人」; 「情人」 and 「思い者」 are old-fashioned written words.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


