yàn​xí

place of study or teaching

砚席 硯席 yàn​xí
place of study or teaching
(literary) an inkstone and a sitting mat; by extension, a place where one studies, writes, or teaches
[honorific for classmates]
(literary) An honorific used in letters when addressing a classmate or fellow student.
studying together
(literary) the act of studying together or being classmates