
Nevertheless, interest in the shifts in the spoken forms remains very important to understand the transition from Latin or Late Latin through to Proto-Romance and Romance languages. However, the term "Vulgar Latin" is itself often viewed as hopelessly vague and unhelpful, and it is used in very different ways by different scholars, applying it to mean spoken Latin of differing types, or from different social classes and time periods. The current consensus is that the written and spoken languages formed a continuity much as they do in modern languages, with speech tending to evolve faster than the written language, and the written, formalised language exerting pressure back on speech. At its extreme, the theory suggested that the written register formed an elite language distinct from common speech, but this is now rejected. This was developed as theory in the nineteenth century by Raynouard. Scholars have differed in opinion as to the extent of the differences, and whether 'Vulgar Latin' was in some sense a different language. Spoken Latin existed over a long time and in many places. The term 'Vulgar Latin' is both controversial and imprecise. Vulgar Latin, also known as Popular or Colloquial Latin, is the range of non-formal registers of Latin spoken from the Late Roman Republic onward. For an introductory guide on IPA symbols, see Help:IPA.

Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode characters. This article contains IPA phonetic symbols. Latin-speaking or otherwise heavily Latin-influenced areas in the Late Roman Empire, highlighted in red.
