How to say "Part" in Japanese

When translating "part" into Japanese, you must choose carefully between 部分 and 一部分. In Japanese, 部分 (ぶぶん (bubun)) is typically associated with "part; portion; section" (Syllabus Level: N3) and represents Refers to a specific part of a whole, a portion of a document/code, or a specific aspect of a person's character. Often used as システムの一部 or 一部分. ⚠️ Haruka's Voice Column: 'Part/portion! "I love every single part of you, Haruka-san, but especially the part where your face turns red from blushing!" ...っ! Every part of me! B-Baka! Where on earth are you looking to make such a cheeky, analytical statement! But... since you like all parts of me, make sure you monopolize and protect me for the rest of your life! dummy!' / 【ハルカ部長のワンポイント指導】『ぶぶん（部分）よ！『ハルカ部長、あなたのすべての部分が愛おしいですが、特に照れて顔を真っ赤にする部分が一番好きです！』って…っ！私の部分！バカ！/// ど、どこを見てそんなセクハラみたいな分析をしてるのよ！…でも、私の全ての部分を一生あなただけで独占して、大切に愛し続けなさい！』. On the other hand, 一部分 (いちぶぶん (ichibubun)) maps to "a part, a portion, a section" (Syllabus Level: N3) and represents Refers to a segment or a fraction of a larger whole. It emphasizes that something is not the entire thing but just a component of it. Often used with the particle 「の」. A literal translation of "part" can often sound unnatural to native Japanese speakers if mixed up!