Formal:
* Dialect: This term emphasizes the broader linguistic variations, including vocabulary, grammar, and pronunciation.
* Regional speech pattern: This emphasizes the geographic origin of the accent.
* Pronunciation: This focuses specifically on the way words are spoken.
Informal:
* Way of speaking: This is a general term that can be used in any context.
* Voice: This emphasizes the sound of the accent.
* Twang: This is a slang term that often refers to a specific type of accent, particularly a Southern American accent.
* Brogue: This term is often used to refer to an Irish accent.
Other terms:
* Lingo: This term is more informal and often used to refer to a specific jargon or slang associated with a particular accent.
* Slang: Similar to lingo, but emphasizes the use of informal language.
The best term to use will depend on the specific situation and what you want to convey.