Dictionary definition of inflection

It can also refer to the manner in which the form of a word changes to indicate grammatical information such as tense, mood, person, number, gender, and case.

In the context of speech, inflection refers to the variations in pitch, volume, and intonation that a person uses when speaking, it can indicate emphasis, emotion, or attitude. For example, a question is usually asked with a rising inflection at the end of the sentence, whereas a statement is usually made with a falling inflection.

In linguistics, inflection refers to the changes in the form of words that indicate grammatical relationships, such as tense, mood, person, number, gender, and case. Inflection can be shown by adding suffixes or prefixes to a word, or by changing the internal structure of a word. For example, in English, the verb "to be" changes its form to indicate tense (am, is, are, was, were) and person (I am, you are, he is, etc.) this change of form is an inflection.

In general, inflection is the way in which a word or a sentence can change its form or pronunciation in order to convey different meanings or grammatical information.