Yin Collection, Middle Volume
Radical: Mountain (shān)
Entry: Dian
Kangxi Stroke Count: 22
Page 323, Entry 04
Pronounced dian. It means the top of a mountain.
Xie Huilian, Poem on Xiling (Xiling shi): Riding a horse and galloping on the extremely high mountain top.
Li Bai, The Hard Road to Shu (Shudao nan): To the west, directly facing Mount Taibai, there is a path for birds to fly, which can traverse the peak of Mount Emei.
Also pronounced like dun.
Book of Odes (Shijing), Odes of Tang (Tangfeng): Gathering ling herbs, gathering ling herbs, on the peak of Mount Shouyang.
Also, in Wang Bao, Rhapsody on the Bamboo Flute (Dongxiao fu): The lonely female bird and the widowed swan are at ease beneath it, while the birds of spring frolic and soar in flocks at its peak.
Also, according to the Zhengzitong, the character dian was historically borrowed and used for the character meaning to fall. This is the same situation as the character for mountain ridge (ling) being written as a simplified form (ling).
According to the Jiyun, it is sometimes written in a simplified form.