can you give me defination of figures of speech and its types?

Below given are some common  figures of speech:

Alliteration (use of the same consonant at the beginning of each stressed syllable in a line of verse)

Example: "furrow followed free"

Repetition (the repeated use of the same word or word pattern)

Example: "alone, alone, all all alone..."

Personification (representing an abstract quality or idea as a person or creature)

Example: “Out of the sea came he!”

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"

Imagery is a description which evokes readers senses of sight, smell, hearing, touch and taste. Metaphors and similes are also considered as imagery. 

For example, "I babble on the pebbles".