Modifier letter

A modifier letter, in the Unicode Standard, is a letter or symbol typically written next to another letter that it modifies in some way. They generally function like diacritics, changing the sound-values of the letter it is next to (usually the letter preceding it but sometimes the following letter instead).[1] Like combining marks, they are often used in technical phonetic transcriptional systems to make phonetic distinctions.[2]

References

  1. ^ 7.3 Modifier Letters, The Unicode Standard, Version 9.0, 2016
  2. ^ 7.8 Modifier Letters, The Unicode Standard, Version 11.0.0, 2018