◎ 四聲 sìshēng

(1) [the four tones of classical Chinese phonetics]∶古漢語字調有平聲、上聲、去聲、入聲四聲

(2) [the four tones of modern standard Chinese pronunciation]∶中國普通話的字調有陰平、陽平、上聲、去聲四聲