deviation from a straight or normal course a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function
{i} curve, bend; change in pitch or tone of the voice; addition of a suffix or other element to the basic form of a word to change its meaning or function (Grammar)
An inflection in someone's voice is a change in its tone or pitch as they are speaking. The man's voice was devoid of inflection
The change in form of a word, which indicates a grammatical change: eg behave - behaved - behaviour - misbehave
An inflection is a type of bound morpheme, with a grammatical function For example, the suffix "-ing" is an inflection which, when attached to a verb, forms the present participle form of the verb Other inflections in English form the other parts of verbs (such as the past tense and past participle forms), and the plural of nouns Some words inflect regularly, and some inflect irregularly, like the plural form "children" of "child", and the past tense and past participle forms "broke" and "broken" of the verb "break"
In grammar, an inflection is a change in the form of a word that shows its grammatical function, for example a change that makes a noun plural or makes a verb into the past tense