A metaphor is saying something is something else.eg.Your love is the fire in my heart.The event was the cherry on my cake.The tree is the life system of the field.
A metaphor is used for comparing two words without using like or asEX in stead of saying, "the girls hair was like a field of golden wheat." you would say, "the girls hair is a field of golden wheat."
A metaphor is a figure of speech in which two dissimilar things are used to make a comparison, but an extended metaphor is a comparison that is continuously being made throughout a written work (more...