in or into a house, building, etc.; indoors: The fire was burning on the hearth within.
on, or as regards, the inside; internally.
inside an enclosed place, area, room, etc.: He was startled by a cry from within.
in the mind, heart, or soul; inwardly.
preposition
in or into the interior of or the parts or space enclosed by: within city walls.
inside of; in.
in the compass or limits of; not beyond: within view; to live within one's income.
at or to some point not beyond, as in length or distance; not farther than: within a radius of a mile.
at or to some amount or degree not exceeding: within two degrees of freezing.
in the course or period of, as in time: within one's memory; within three minutes.
inside of the limits fixed or required by; not transgressing: within the law.
in the field, sphere, or scope of: within the family; within one's power.
noun
the inside of a place, space, or building.
Origin of within
before 1000; Middle English withinne (preposition and adv.), Old English withinnan (adv.), equivalent to withwith- + innan from within, equivalent to inin + -an suffix of motion from
Words nearby within
with flying colors, pass with, with good grace, half a heart, with, withhold, withholding tax, within, within an ace of, within bounds, within call, withindoors, within-named