- A sweet or agreeable succession of sounds. - 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. - The air or tune of a musical piece.
Meaning of 'melody' (Princeton's WordNet)
1 . melody
[ n]
Meaning (1): - a succession of notes forming a distinctive sequence