Tone letter

Register tones
˥ ˦ ˧ ˨ ˩
IPA number519–523
Entity (decimal)˥–˩
Encoding
Unicode (hex)U+02E5–U+02E9
Level tones
˥ ˧ ˩
˥ ˩
Long level-tone letters are commonly used for non-checked syllables and short letters for checked syllables, though this is not an IPA distinction.
Rising and falling tones
˩˥ ˧˥ ˨˦ ˩˧ ˩˩˧
˥˩ ˥˧ ˦˨ ˧˩ ˥˥˧
Peaking and dipping tones
˩˥˧ ˧˥˩ ˧˥˧ ˩˧˩
˥˩˧ ˧˩˥ ˥˧˥ ˧˩˧
˨˦˨ ˦˨˦ ˨˩˧ ˧˦˨
Contour-tone letters are composed as sequences:
˥˧˥˧, ˧˩˧˧˩˧

Tone letters are letters that represent the tones of a language, most commonly in languages with contour tones.