Within is defined as inside, indoors or not beyond a certain limit.(adverb)
An example of within is milk being inside the refrigerator.
See within in Webster's New World College Dictionary
Origin: ME withinne < OE withinnan < with, with + innan, within, into < in, in
See within in American Heritage Dictionary 4
Origin: Middle English withinne
Origin: , from Old English withinnan
Origin: : with, with; see with
Origin: + innan, from within (from in, in; see in1).
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