Definitions
1.nounA musical composition with lyrics for voice or voices, performed by singing."Thomas listened to his favorite song on the radio yesterday."
2.noun(by extension) Any musical composition.
3.nounPoetical composition; poetry; verse.
4.nounThe act or art of singing.
5.nounA melodious sound made by a bird, insect, whale or other animal."I love hearing the song of canary birds."
6.nounThe distinctive sound that a male bird utters to attract a mate or to protect his territory; contrasts with call
7.nounA low price, especially one under the expected value; chiefly in for a song."He bought that car for a song."
8.nounAn object of derision; a laughing stock.