名詞 inflection:

1. a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function
   同義詞：inflexion
2. the patterns of stress and intonation in a language
   同義詞：prosody
3. deviation from a straight or normal course
   同義詞：flection, flexion
4. a manner of speaking in which the loudness or pitch or tone of the voice is modified
   同義詞：modulation

1. In certain languages, the inflection of nouns, pronouns, and adjectives in categories such as case, number, and gender.
   詞形變化某些語言中，名詞，代詞和形容詞在格，數(shù)和性等方面的詞形變化
2. A falling inflection of the voice, as at the end of a sentence.
   聲音降落，降句調(diào)發(fā)音時下降的音調(diào)
3. In English, some questions have a rising inflection.
   在英語中有些疑問句需要用升調(diào)。
4. The violin has a poor inflection.
   這把小提琴的音調(diào)不準(zhǔn)。

in.flec.tion

n.（名詞）
The act of inflecting or the state of being inflected.
彎曲：彎曲的行動或被彎曲的狀態(tài)
Alteration in pitch or tone of the voice.
音調(diào)的調(diào)整：在音調(diào)和音高上的變化
Grammar
【語法】
An alternation of the form of a word by adding affixes, as in Englishdogs from dog, or by changing the form of a base, as in English spoke from speak, that indicates grammatical features such as number, person, mood, or tense.
字尾變化：通過加詞綴來改變一個詞的形式，比如在英語中，dogs 一詞以 dog 一詞轉(zhuǎn)換而來；也表示通過改變詞本身，如英語中的 spoke 是從 speak 一詞變來的；這些詞綴增減和詞本身的變化表示了數(shù)、人稱、語態(tài)或時態(tài)等語法特征
The paradigm of a word.
詞的詞形變化
A pattern of forming paradigms, such as noun inflection or verb inflection.
詞形變化的規(guī)則：形成詞形變化的種類，如名詞屈折變化、動詞屈折變化
A turning or bending away from a course or position of alignment.
偏離：從一條路線或隊列中一位置上離開

【引伸】
inflec.tional
adj.（形容詞）
inflec.tionally
adv.（副詞）