Meaning of yín:
yín
吟
Verb
to chant; to recite; (literary) to lament; to groan; old variant of 吟[yin2]
Noun
verse; song (often used in titles of classical poems); (bound form) (in poetry) the cry of certain animals and insects; (music) rapid vibrato (technique for playing the guqin 古琴[gu3qin2]) (cf. 猱[nao2], wide vibrato)