Free variation


In linguistics, free variation is the phenomenon of two sounds or forms appearing in the same environment without a change in meaning and without being considered incorrect by native speakers.

Effects

When phonemes are in free variation, speakers are sometimes strongly aware of the fact, and will note, for example, that tomato is pronounced differently in British and American English, or that either has two pronunciations that are distributed fairly randomly. However, only a very small proportion of English words show such variations. In the case of allophones, however, free variation is exceedingly common and, along with differing intonation patterns, variation in allophony is the most important single feature in the characterization of regional accents.
English's deep orthography and the language's wide variety of accents often cause confusion, even for native speakers, on how written words should be pronounced. That allows for a significant degree of free variation to occur in English.

English examples