SD making use of the meaning of language unit (figures of speech)
METAPHOR Metaphor denotes a transference of meaning based on resemblance, in other words, on a convert comparison: He is not a man, he is a machine; What an ass you are!; Not only objects can be compared in a metaphor, but also phenomena, actions or qualities: Some books are to be tasted, others swallowed, and some few to chewed and digested (F.Bakon) SIMILE
This is a comparison creating a vivid image due to the fact that the object with which we compare is well-known as an example of the quality in question. Here conjunction “as” is used: (as) beautiful as a rose; Stupid as an ass; Fat as a pig; The characteristic on the basis of which the comparison is made, may only be implied, not named, as when the preposition “like” is used: to drink like a fish (=very much) Oh, my love is like a red, red rose That`s newly sprung in June. (Burns)