Tō-on
Tō-on or tōon (唐音; English: /ˈtoʊ.ɒn/ TOH-on; Japanese pronunciation: [toꜜːoɴ], "Tang sound") are Japanese kanji readings imported from China by Zen monks and merchants during and after the Song dynasty, as a form of on'yomi (音読み). As with kan-on and go-on, the "tō" in "tō-on" does not denote the Tang dynasty but is a term meaning China itself.