diction

diction
noun
[mass noun]

the choice and use of words and phrases in speech or writing
措辞，用语
Wordsworth campaigned against exaggerated poetic diction.
华兹华斯发起一场运动，反对诗歌中的夸张用词。
the style of enunciation in speaking or singing
（说话或唱歌的）咬字，发音
she began imitating his careful diction.
她开始模仿他咬字很细的风格。

语源

mid 16th cent. (denoting a word or phrase): from Latin dictio(n-), from dicere 'to say'