Onomatopeia

ONOMATOPOEIA

Definition:  words are used to imitate sounds
Example: Baa baa black sheep, have you any wool?
Yes sir, yes sir, three bags full!
One for the master, one for the dame,
And one for the little boy who lives down the lane. 

Significance: Onomatopoeia makes the poem sounds more fun. While we read we can hear the sounds in our ears like sheep, dogs, deers, cats, ...