HSK10+
hán
correspondence
Oracle script
Bronze script
Seal script
Clerical script
圅
correspondence; a case; a box
函 (圅)
variant of 函[hán]
邀请函
invitation letter
函
case
函数
function (math.)
信函
letter
函授
to teach by correspondence
Academia Sinica
Unicode
Baxter-Sagart
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing