(1):

(n.) A lyrical poem adapted to vocal music; a ballad.

(2):

(n.) Poetical composition; poetry; verse.

(3):

(n.) An object of derision; a laughingstock.

(4):

(n.) A trifle.

(5):

(n.) That which is sung or uttered with musical modulations of the voice, whether of a human being or of a bird, insect, etc.

(6):

(n.) More generally, any poetical strain; a poem.