a sound made by curling the tip of the tongue back toward the roof of the mouth, such as Mandarin "zh", "ch", "sh", and "r"

(linguistics) a sound produced by the breath passing along the sides of the tongue, such as l

A sound produced by curling the tip of the tongue backward toward the roof of the mouth; also called [[翘舌音|翹舌音|qiao4 she2 yin1]] or [[舌尖后音|舌尖後音|she2 jian1 hou4 yin1]]

The consonants "z", "c", and "s" in Mandarin, produced with the tip of the tongue flat against the back of the upper teeth or the gums; often called dental or alveolar consonants.