"1. phonic/phonemic: structural units represent a phonological
segment at some level in the derivation
1a. abjad: consonants only (e.g. prototypical example: ancient
Semitic scripts)
1b. alphabets: consonants, and vowels (e.g. Latin)
2. syllabic: structural units represent a phonological syllable
2a. syllabary: no systematic relationship between shapes (e.g.
Hiragana)
2b. abugida: regular relationship between shapes that corresponds to
a regular relationship between phonemes (e.g. Ethiopic, Cdn
Syllabics)
3. alphasyllabary: two levels of structural unit representing
phonemes and syllables (prototypical example: Hangul)
4. logosyllabary: structural units represent syllables and/or
morphemes (e.g. Chinese ideographs)"
Now that I am forbidden from using 'that word', which I have grown
to like, by the way, I will have to restrict myself to quoting
others.