dialect

/ˈdaɪəˌlɛkt/

the usage or vocabulary that is characteristic of a specific group of people

中文释义：方言；土语

The local dialect differs significantly from the standard language.

当地方言与标准语言有很大差异。

Linguists study how each dialect evolves over time.

语言学家研究每种方言如何随时间演变。