HSK10+
m
Phonosemantic compound. 口 represents the meaning and 母 represents the sound.
口 Meaning component
kǒu
mouth
母 Sound component
mǔ
mother
Seal script
Regular script
呣
interjection expressing a question; interjection expressing consent; um
Academia Sinica
Make Me a Hanzi
Unicode
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing