What does 知人 mean?
知人 is a Japanese noun meaning “friend, acquaintance” in English. It is written as 知人 in kanji, ちじん in hiragana, and chijin in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
もし私の家が大邸宅だったら私の誕生日のパーティーには知人をみんな招待するのだが。
If my house were a mansion, I would invite everyone I know to my birthday party.