Yin Collection, Middle Volume Radical: Mountain (shān) Entry: ya Kangxi stroke count: 7 Page 308, Entry 11 Compilation of Rhymes (Jiyun): Pronounced xu. Same as xia. Xiahsia, the appearance of a vast, empty mountain valley. Poem by Han Yu: Looking down in awe at the vast chasm. Compilation of Rhymes (Jiyun): Xia may also be written as ya.