provincialism

在这个地区用'包子'来指代馒头是一种典型的地方用语。

Using 'baozi' to refer to steamed buns is a typical ___provincialism in this area.

她的国际旅行经历帮助她摆脱了小镇思维的狭隘。

Her international travels helped her overcome the ___provincialism of small-town thinking.