phoneme
/ˈfəuni:m; `fonim/ n
(linguistics 语言) any one of the set of smallest distinctive speech sounds in a language that distinguish one word from another 音位; 音素
English has 24 consonant phonemes. 英语有24个辅音音素.
In English, the `s' in `sip' and the `z' in `zip' represent two different phonemes. 英语中sip中的s和zip中的z为两个不同的音素.