INFLEXION, a change in the form of a word, usually modification or affixation, signalling change in such grammatical functions as tense, voice, mood, person also INFLECTION [n]
A change in the form of a word (typically the ending) to express a grammatical function or attribute such as tense, mood, person, number, case, and gender
The process or practice of inflecting words
The modulation of intonation or pitch in the voice
The variation of the pitch of a musical note
A change of curvature from convex to concave at a particular point on a curve