with·in / wi[voicedth]ˈin; wiˈ[unvoicedth]-/ • prep. inside (something): the spread of fire within the building. ∎ inside the range of (an area or boundary): a field located within the city. ∎ inside the range of (a specified action or perception): within reach. ∎ not further off than (used with distances): Bob lives within a few miles of Honesdale. ∎ occurring inside (a particular period of time): sold out within two hours 33% were rearrested within two years of their release. ∎ inside the bounds set by (a concept, argument, etc.): full cooperation within the terms of the treaty. • adv. inside; indoors: inquire within. ∎ internally or inwardly: beauty coming from within. PHRASES: within doors indoors.