interior

Etymology

From Latin interior (“inner, interior”).

adj

1. Within any limits, enclosure, or substance; inside; internal; inner.
   the interior apartments of a house; the interior surface of a hollow ball
2. Remote from the limits, frontier, or shore; inland.
   the interior parts of a region or country

noun

1. The inside of a building, container, cavern, or other enclosed structure.
   The gardens are just divine, but the interior of the house are even more splendid.
2. The inside regions of a country, distanced from the borders or coasts.
   Sir Richard Burton explored far into the African interior.
3. (mathematics, topology) The set of all interior points of a set.