plz describe literary devices??

A Figure of Speech or literary device is where a word or words are used to create an effect, often where they do not have their original or literal meaning. Some of them are as follows :

Simile   (expresses a resemblance between things of different kinds usually formed with 'like' or 'as')

Example:   “ like a three years' child.” 

Irony   (incongruity between what is expected and what occurs)

Example:   “Water, water, everywhere, nor any drop to drink.”

Metaphor   (refer to something that it does not literally denote in order to suggest a similarity)

Example:   "Was tyrannous and strong"