Home/Vocab Vault/一部一部一部いちぶone partN1NounFreq. #548Meanings1one part2one portion3one section4one copy (of a book)5(one) complete set (of books)Related WordsSame Kanji部分ぶぶんportion部長ぶちょうhead (chief, director) of a section or department部品ぶひんparts部員ぶいんstaff部下ぶかsubordinate person部会ぶかいsection meetingPractice 一部 in JIVXReinforce this word with AI-graded sentence practice and spaced repetition.Start Practicing Free