RP is an accent, so the study of RP is concerned only with matters of pronunciation other areas relevant to the study of language standards such as vocabulary, grammar and style are not considered. For over a century there has been argument over such issues as the definition of RP, whether it is geographically neutral, how many speakers there are, whether sub-varieties exist, how appropriate a choice it is as a standard and how the accent has changed over time. Received Pronunciation (often abbreviated as RP) is the accent traditionally regarded as the standard for British English. For the distinction between, / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters. For an introductory guide on IPA symbols, see Help:IPA. This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). Please consider expanding the lead to provide an accessible overview of all important aspects of the article. This article's lead section may be too short to adequately summarize the key points.