A word or expression which signifies something other than the physical object to which it directly refers. Ex: rose=love cross=Christianity
An exaggeration or overstatement. Ex: An apple a day keeps the doctor away. I drank oceans of tea. I nearly died laughing.
A comparison of two unlike things using like, as, or than. Ex: Her face wasa round as a pumpkin. The steak looks like an old shoe!