17. Assonance

Definition: The repeat of sound in the middle of the sentence.
Example: Free to see the tree.
Significance: It is hard to find the words to fit in the assonance, but the sound repeat is really funny.

18. Onomatopoeia:

Definition: Word that describe sounds.

Example: The dog barks ruff ruff.

Significance: Onomatopoeia can also use to describe the affect of something like sound of the door.

19. Symbol:

Definition: Something that visible represent the invisible thing inside.

Example: Bald Eagle is a symbol of United States.

Significance: Symbol help the poets to try to talk about that thing but they do not want to say that straight.

20. Line

Definition: A sentence in a poem.

Example: I will love you forever.

Significance: Line help the reader to understand the meaning of the poem.