voiced alveolar fricative

The International Phonetic Alphabet uses for the voiced alveolar fricative.

The voiced alveolar fricatives are consonantal sounds.

Zain is a constant with the /z/ sound which is a voiced alveolar fricative.

Features of the voiced alveolar fricative:

Examples of central consonants are the voiced alveolar fricative (the "z" in the English word "zoo") and the palatal approximant (the "y" in the English word "yes").