(1) A syllable characterized by universal interpenetrating markers, in cases of uncertainty as to whether a given marker belongs to a consonant or vowel. The following is an example: in the system of phonological oppositions presently being reconstructed for Common Slavic, the marker of hardness-softness belongs to the entire syllable and not to individual phonemes.
(2) The syllable as an integral phonological unit, analogous to the phoneme. The concept of the syllabeme is used in cases when syllabic structure is irrelevant to research, as in metrics.
(3) A marker of syllabic writing.