You Collection, Upper Volume Radical: Speech (yán) Entry: ni Kangxi Stroke Count: 15 Page 1166, Entry 05 Tang Rhymes (Tangyun) and Collected Rhymes (Jiyun) both record the pronunciation as na. According to the Explaining Graphs and Analyzing Characters (Shuowen), it refers to speech used to spy on or monitor one another. Additionally, in the Jade Chapters (Yupian) and Extensive Rhymes (Guangyun), the pronunciation is recorded as ni. According to the Piecang, it refers to speech that is not upright. Furthermore, in the Collected Rhymes (Jiyun), the pronunciation is recorded as yi. It means to peek or spy.