diction

n. 措辞, 发音, 用语

副词:dictionally 形容词:dictional 

dic.tion

n.（名词）
Choice and use of words in speech or writing.
措词：讲话或书写中，对词的使用或选择
Degree of clarity and distinctness of pronunciation in speech or singing; enunciation.
发音：讲话或唱歌中发音的清楚和明晰程度；清晰的发音

来源：
Middle English diccion [a saying, word]
中古英语 diccion [说法，话]
from Old French
源自 古法语
from Latin dictiô dictiôn- [rhetorical delivery]
源自 拉丁语 dictiô dictiôn- [修辞，传递]
from dictus [past participle of] docere [to say, speak] * see deik-
源自 dictus [] docere的过去分词 [说，讲] *参见 deik-

【引伸】
dic.tional
adj.（形容词）
dic.tionally
adv.（副词）
<参考词汇><同义词>diction,wording,vocabulary,phraseology,phrasingThese nouns denote choice of words and the way in which they are used.
这些名词表示对使用的词和方式的选择。
Diction is the selection and arrangement of words in relation to effective expression:
Diction 关系到有效表达用词的挑选和安排：
例句：
very poor diction in the essay;
论文中用词不当；

例句：
a new poetic diction.
新颖的诗歌词语。

Wording stresses style or manner of expression:
Wording 强调表达的风格或方式：
例句：
writing in which the wording takes on a regional flavor.
在具有地方色彩的写作。

Vocabulary is the aggregate of words a person understands or uses:
Vocabulary 是人们理解或使用的一些词的汇集：
例句：
the general vocabulary of an educated native speaker of English.
一位受过教育的本地讲英语者的总词汇。

Phraseology and phrasing include vocabulary, characteristic style, and the way in which words are grouped:
Phraseology 和 phrasing ，包括词汇、带有特色的风格以及词语组织的方式：
例句：
the abstruse phraseology of physics;
物理学深奥的措词；

例句：
a composition marked by elegant phrasing.
用优美的措词写下的作文