Prosody
Part of speech: noun
Definition: The study of rhythm, intonation, stress, and related attributes in speech. The study of poetic meter; the patterns of sounds and rhythms in verse.
Inflection
Part of speech: noun
Definition: a change in the form of a word that reflects a change in grammatical function.a change in pitch or tone of voice.a change in curvature from concave to convex or from convex to concave.a turning away from a straight course.