Definition of simile:

A simile is a figure of speech comparing two unlike things, often introduced with the word "like" or "as". ...

Definition of metaphor:

A metaphor is a figure of speech in which an expression is used to refer to something that it does not literally denote in order to suggest a similarity.

Definition of personification:

(Also known as Prosopopoeia.) A figure of speech that gives human qualities to abstract ideas, animals, and inanimate objects. William Shakespeare used personification in Romeo and Juliet in the lines "Arise, fair sun, and kill the envious moon, Who is already sick and pale with grief. ... "

Definition of rhyme:

A rhyme is a repetition of similar sounds in two or more words and is most often used in poetry and songs. The word "rhyme" may also refer to a short poem, such as a rhyming couplet or other brief rhyming poem such as nursery rhymes.

Definition of rhythm:

A regular pattern of sound, time intervals, or events occurring in writing, most often and most discernably in Poetry. Regular, reliable rhythm is known to be soothing to humans, while interrupted, unpredictable, or rapidly changing rhythm is disturbing. ...

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