艾滋病
ài zī bìng · HSK 7
aid
🎗️ ai-zi echoes AIDS, 病 means disease — the name spells out what it is
A direct sound loan: 艾滋 (ài zī) mimics the English acronym AIDS, then 病 (bìng, disease) tags on to classify it as a medical term. Hear the English inside the Chinese.
病 — sickness radical 疒 + 丙 (bǐng, phonetic)
病 is a semantic-phonetic compound. The radical 疒 depicts a person lying on a bed and signals illness or ailment. The component 丙 supplies the sound (bǐng → bìng). Originally 病 referred to a serious illness, contrasted with 疾 for a lighter ailment; today it broadly means 'sick' or 'disease.'