1.a short musical composition with words;
a successful musical must have at least three good songs
2.a distinctive or characteristic sound;
the song of bullets was in the air
3.the act of singing;
with a shout and a song they marched up to the gates
4.the characteristic sound produced by a bird;
a bird will not learn its song unless it hears it at an early age
5.a very small sum;
he bought it for a song