Broad Rimes (Guangyun) states it is pronounced xian (level tone). Collected Rimes (Jiyun) states it is pronounced xian (level tone). The pronunciation is xian (level tone). Jade Chapter (Yupian) states the meaning is difficult. Additionally, Collected Rimes (Jiyun) states the meaning is sound. Additionally, Collected Rimes (Jiyun) states it is the same as the character xian. See the notes under the character xian in the Radical: Stone (shí) section for details.