What does 言い分 mean?
言い分 is a Japanese noun meaning “one's say; one's point; one's case; one's claim” in English. It can also be translated as “complaint” depending on context. It is written as 言い分 in kanji, いいぶん in hiragana, and iibun in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼には彼女に反論する立派な言い分がある。
He has a good case against her.