- Tones as dialectic symbols
- symbols that not frequently used but existing(supported) in tipa (e.g. \super variant of all Latin letters)
- get familiar to tipa macros (e.g. \ipaclap)
- supply glyph for missing symbols (e.g. right hook variant of v)
- O obsolete
- N not in IPA
- M in IPA but missing in TIPA
- NS non-standard
- E extended
- Char
- L letter
- M mark
- Combinator
- L combine left
- LR combine both