That which is sung or uttered with musical modulations of the voice, whether of a human being or of a bird, insect, etc.
- Music A brief composition written or adapted for singing.
- Music The act or art of singing: broke into song.
- A distinctive or characteristic sound made by an animal, such as a bird or an insect.
- Poetry; verse.
- A lyric poem or ballad.
- for a song Informal At a low price: bought the antique tray for a song.