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.