C. Syllabic alphabets

Syllabic alphabets, alphasyllabaries or abugidas consist of symbols for consonants and vowels. The consonants each have an inherent vowel which can be changed to another vowel or muted by means of diacritics. Vowels can also be written with separate letters when they occur at the beginning of a word or on their own.
When two or more consonants occur together, special conjunct symbols are often used which add the essential parts of first letter or letters in the sequence to the final letter.
The illustration on the right shows how some of the vowel diacritics (in red) are used in the Devanagari alphabet, and also shows a number of conjunct consonants.

Syllabic alphabets currently in use

Bengali	Buhid	Burmese/Myanmar
Chakma	Cham	Dehong Dai
Devanāgarī	Fraser	Ge'ez (Ethiopic)
Gondi	Gujarāti	Gurmukhi (Punjabi)
Hanuno'o	Hmong	Jenticha
Kannada	Khmer	Kirat Rai
Lanna	Lao	Lepcha (Róng-Ríng)
Limbu / Kirati	Malayalam	Manipuri
Mwangwego	New Tai Lue	Oriya
Shan	Sinhala	Sorang Sompeng
Tamil	Telugu	Thai
Tibetan	Tikamuli	Tolong Siki
Varang Kshiti

Syllabic alphabets used to a limited extent

Balinese	Batak	Grantha
Javanese	Kaithi	Khojki
Kulitan	Lontara	Ranjana
Re(d)jang	Sharda	Siddham
Sourashtra	Soyombo	Sundanese
Syloti Nagri	Tagalog	Tagbanwa

Syllabic alphabets that are no longer used

Ahom	Brāhmī	Dhives Akuru
Evēla Akuru	Kharosthi	Modi
Mongolian Horizontal Square Script	Old Persian Cuneiform	Phags-pa
Pallava	Sindhi	Takri
Tocharian	Tulu