A comparison that does not use like or as is called a metaphor (C).
Some examples of metaphors include "it's raining cats and dogs" or "a heart of gold."
A similie is a comparison that does use like or as.
A couplet is two lines of verse that usually have the same meter and are joined by rhyme.
A synecdoche is a figure of speech in which a part is made to represent a whole or vice versa.
