Accent

An accent is a manner of pronunciation of a language. It is a distinct form of pronunciation associated with a country, region, area or social class.

Accents can be confused with dialects which are varieties of language differing in vocabulary, syntax, and morphology, as well as pronunciation. Dialects are usually spoken by a group united by geography or social status.

People occasionally make the claim "I don't have an accent." What they presumably mean is "I don't have an identifiable regional accent" - which is not quite the same thing. Everybody has an accent of some type - even if that accent is only Received Pronunciation or general American.