What does 同類 mean?
同類 is a Japanese noun meaning “the same kind; accomplice; partner” in English. It is written as 同類 in kanji, どうるい in hiragana, and dourui in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
石炭は化学的にダイヤと同類である。
Coal is chemically allied to diamonds.