The definition of a metaphor is a word or phrase used to compare two unlike objects, ideas, thoughts or feelings to provide a clearer description.(noun)
An example of a metaphor is calling the dependable father a rock.
See metaphor in Webster's New World College Dictionary
Origin: Fr métaphore < L metaphora < Gr < metapherein, to carry over < meta, over (see meta-) + pherein, to bear
See metaphor in American Heritage Dictionary 4
Origin: Middle English methaphor
Origin: , from Old French metaphore
Origin: , from Latin metaphora
Origin: , from Greek, transference, metaphor
Origin: , from metapherein, to transfer
Origin: : meta-, meta-
Origin: + pherein, to carry; see bher-1 in Indo-European roots.
Learn more about metaphor