IPA: /ˈtiːhaʊs/
KK: /ˈtiːhaʊs/
A place where people can go to drink tea and eat light snacks or meals.
We enjoyed a relaxing afternoon at the teahouse, sipping different types of tea.
Teahouse is formed from "tea" (from Chinese "chá", meaning tea) and "house" (from Old English "hus", meaning dwelling or shelter). A teahouse is a dwelling or establishment where tea is served.
Think of a place where tea ('tea') is served in a dwelling ('house') — that's what a teahouse is.