(1):

(n.) A bend; a fold; a curve; a turn; a twist.

(2):

(n.) The variation or change which words undergo to mark case, gender, number, comparison, tense, person, mood, voice, etc.

(3):

(n.) The act of inflecting, or the state of being inflected.

(4):

(n.) Same as Diffraction.

(5):

(n.) A slide, modulation, or accent of the voice; as, the rising and the falling inflection.

(6):

(n.) A departure from the monotone, or reciting note, in chanting.

(7):

(n.) Any change or modification in the pitch or tone of the voice.