What term describes the form of language spoken in a particular region or group involving changes in pronunciation?

The correct term that describes the form of language spoken in a particular region or group, specifically involving changes in pronunciation, is accent. An accent refers to the distinctive way in which words are pronounced by speakers from different regions or cultural backgrounds. It reflects characteristics such as intonation, stress, and phonetic variations that can be uniquely tied to geographical or social factors.

While dialect is related to regional language variations, it encompasses not just pronunciation, but also differences in grammar, vocabulary, and sometimes even the use of specific phrases. Syntax pertains to the structure of sentences and how words are arranged to convey meaning. An idiom is a phrase or expression that has a figurative meaning different from its literal meaning, which does not directly address pronunciation variations.

Understanding these distinctions can clarify how language varies across different communities and enhances communication across diverse groups.