洁（jie）
Name meaning
洁 (jie) carries purity, moral cleanliness and clear conduct. A useful Chinese cultural reading is this: 廉洁 (Lianjie), clean public conduct; 冰清玉洁 (bing qing yu jie) bingqing yujie, pure as ice and jade; and the medical sobriquet 张洁古 (zhang jie gu) Zhang Jiegu. As a name character, 洁 (jie) should feel clean, trustworthy and disciplined rather than merely pretty. It can work especially well for medicine, public service, education, law, health work and any role where trust and careful conduct matter. For English speakers, the point is not just the dictionary gloss "clean; pure"; the stronger reading is a person-like image with history, sound and temperament.
Practical naming use
洁 (jie) is best explained through purity, moral cleanliness and clear conduct. It should not be treated as filler for sound matching. Culturally, 廉洁 (Lianjie), clean public conduct; 冰清玉洁 (bing qing yu jie) bingqing yujie, pure as ice and jade; and the medical sobriquet 张洁古 (zhang jie gu) Zhang Jiegu. That gives the character a real Chinese image instead of a thin dictionary meaning. In a modern name, it suits medicine, public service, education, law, health work and any role where trust and careful conduct matter.
Pair 洁 (jie) with characters such as 明 (Ming) for clarity, 安 (An) for calm, 雅 (Ya) for elegance, 宁 (Ning) for peace or 文 (Wen) for cultivated expression. The second character should turn the cultural image into a clear human temperament.
洁明 (Jieming): Jie contributes clean, pure; Ming adds brightness, clarity.
Historical / name-use references
张洁古 (Zhang Jiegu)
张洁古 (zhang jie gu) Zhang Jiegu was an important Jin-Yuan medical scholar. His style name 洁古 (Jiegu) gives 洁 (jie) a learned, medical and disciplined reference, useful for a name that wants cleanliness to mean trust and cultivated skill.