Rhyme This is when two words have identical sounds.
Oxymoron This is two words with opposing meanings are used together intentionally for effect, for example 'small gulf' from Two scavanges in a truck, Two beautiful people in a mercedes.
Alliteration When two or more words close together begin with the same letter or sound, for example 'sun surfacing' from the pome Island man
Personification - giving an object 'human features' For example, the tree waved'
Simile This is comparing something using 'like' or 'and'