Wu Collection, Middle Volume Radical: Sickness (bù) Entry: Nai Kangxi Stroke Count: 7 Page 769, Entry 02 Broad Rhymes (Guangyun): Pronounced nai (rising tone). Collected Rhymes (Jiyun): Pronounced nai (rising tone), reading the same as the rising tone of the character er. Meaning: Sickness. Also, Collected Rhymes (Jiyun): Pronounced nang (rising tone). Also, pronounced nai (third tone). Meaning: Same as the above.