The definition of middle is being at a central or intermediate point.
(adjective)An example of middle used as an adjective is in the phrase "middle child," which means a child who is neither the oldest or youngest in a group of siblings.
Middle is defined as the area that is at the center.
(noun)An example of a middle is a person's stomach, called "his middle."
See middle in Webster's New World College Dictionary
adjective
Origin: ME middel < OE < midd-, mid + -el, -le
noun
See middle in American Heritage Dictionary 4
adjective
Origin:
Origin: Middle English middel
Origin: , from Old English; see medhyo- in Indo-European roots
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