腹部|ふくぶfukubu[2]nakadaka (mid-high)

1. noun, anatomyabdomen; abdominal region; belly
   その一撃いちげきは彼かれの腹部ふくぶをとらえた。↗

   The blow caught him in the stomach.
2. nounmiddle part

• Synonymお腹おなかNeutralThe everyday word for the belly, warm and common in speech; 「腹部」 is the medical, formal term.
• Synonym腹はらNeutralCovers the abdomen but also one's mind or true intentions, as in 「腹を割る」; 「腹部」 has no such figurative sense of feelings or intent.
• Related胴どうNeutralMeans the trunk or torso, also the kendo plastron; it takes in the chest-and-belly section, not just the abdomen.
• Relatedどてっ腹どてっぱらCasualA rough, emphatic colloquial word for the belly, as in 「どてっ腹に穴をあける」.
• Related太腹ふとばらNeutralAn old-fashioned, rarely used word for the belly or waist area.
• Antonym背部はいぶWrittenWritten, formal term for the back, on the opposite side of the body from 「腹部」.

Use 「腹部」 for the abdomen in medical or formal settings, as in 「腹部の痛み」 or 「腹部エコー」; in daily speech say 「お腹」. 「腹」 also covers one's true intentions, 「胴」 the trunk, 「どてっ腹」 is rough and emphatic, 「背部」 is the back.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 胸部きょうぶの下した。
2. 物ものの真ん中まんなかあたり。飛行機ひこうきなどの中央ちゅうおう下部かぶ。