Definition of "Middle" :
noun: the middle area of the human torso (usually in front)
noun: an intermediate part or section
"A whole is that which has beginning, middle, and end."
noun: an area that is approximately central within some larger region
noun: time between the beginning and the end of a temporal period
"The middle of the war."
verb: put in the middle
adjective: equally distant from the extremes
adjective: between an earlier and a later period of time
"In the middle years."
adjective: of a stage in the development of a language or literature between earlier and later stages
"Middle English is the English language from about 1100 to 1500."
adjective: being neither at the beginning nor at the end in a series
"The middle point on a line."