A song is a poem written to be sung, usually with a melody and a structure that supports performance. Songs often use repetition, rhyme, and a regular rhythm to make the words easy to remember and sing. In poetry, the word can also refer to a lyric poem that has the qualities of a song even if it is not actually set to music.
Example
Across the darkened field I go,
With lantern light and steady step;
The wind repeats the tune I know,
And keeps the song from sleep and wreck.
Related Definitions
[n] the act of singing; "with a shout and a song they marched up to the gates"
[n] the characteristic sound produced by a bird; "a bird will not learn its song unless it hears it at an early age"
[n] a short musical composition with words; "a successful musical must have at least three good songs"
[n] a distinctive or characteristic sound; "the song of bullets was in the air"; "the song of the wind"; "the wheels sang their song as the train rocketed ahead"
[n] the imperial dynasty of China from 960 to 1279; noted for art and literature and philosophy
[n] a very small sum; "he bought it for a song"