melody > define
noun
- A succession of notes forming a distinctive sequence.
- usage: "she was humming an air from Beethoven"
- synonyms: tune, air, strain, melodic line, line, melodic phrase
- The perception of pleasant arrangements of musical notes.
- synonyms: tonal pattern
by WordNet 3.0 © 2006 by Princeton University
- (n.) A rhythmical succession of single tones, ranging for the most part within a given key, and so related together as to form a musical whole, having the unity of what is technically called a musical thought, at once pleasing to the ear and characteristic in expression.
- (n.) The air or tune of a musical piece.
- (n.) A sweet or agreeable succession of sounds.
by Webster's Revised Unabridged Dictionary