聲母

the initial consonant of a Chinese syllable / the phonetic component of a phono-semantic compound character (e.g. the component 青[qing1] in 清[qing1])

mother / elderly female relative / origin / source / (of animals) female

sound / voice / tone / noise / reputation / classifier for sounds

(Chinese linguistics) zero initial (the initial of a syllable that does not begin with a consonant)