IPA: /ˈtʌtʃɪŋ/
KK: /ˈtʌtʃɪŋ/
Causing feelings of sympathy or tenderness; emotionally moving.
The movie had a touching scene that made everyone cry.
In relation to something; regarding a particular subject or topic.
The book is touching on important social issues.
Touching → It is formed from "touch" (from Old French *touchier*, meaning to come into contact with) and "-ing" (a suffix used to form present participles). The word "touching" refers to the act of coming into contact with something, often in a way that evokes emotion.
Think of the act of coming into 'contact' ('touch') with something that can evoke feelings — that's why 'touching' means emotionally moving.