being within; inside of anything; internal; inner; further toward a center.
the interior rooms of a house.
of or relating to that which is within; inside.
an interior view.
situated well inland from the coast or border.
the interior towns of a country.
of or relating to the inland.
domestic.
interior trade.
private or hidden; inner.
interior negotiations of the council.
pertaining to the mind or soul; mental or spiritual.
the interior life.
the internal or inner part; inside.
Architecture.
the inside part of a building, considered as a whole from the point of view of artistic design or general effect, convenience, etc.
a single room or apartment so considered.
a pictorial representation of the inside of a room.
the inland parts of a region, country, etc..
the Alaskan interior.
the domestic affairs of a country as distinguished from its foreign affairs.
the Department of the Interior.
the inner or inward nature or character of anything.
Mathematics. the largest open set contained in a given set, as the points in a circle not including the boundary.
a part, surface, or region that is inside or on the inside
the interior of Africa
inner character or nature
a film or scene shot inside a building, studio, etc
a picture of the inside of a room or building, as in a painting or stage design
the inside of a building or room, with respect to design and decoration
of, situated on, or suitable for the inside; inner
coming or acting from within; internal
of or involving a nation's domestic affairs; internal
(esp of one's spiritual or mental life) secret or private; not observable
See inside.
First recorded in 1480–90; from Latin, comparative adjective equivalent to inter- “inward” + -ior comparative suffix; see exterior
Interior commonly refers to the inside of something. When house hunting you might find that the outside of the house is run down, but the interior rooms beautifully renovated. If you design the color scheme of a room and pick our furnishings for it, you are an interior designer. If you delve into a characters feelings and emotions, you might describe what you're looking at as their interior. A place that lies far inland from a coast or border is said to lie in the interior of a country. If you talk to yourself inside your mind, you are said to be having an interior monologue.
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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It turned the Mississippi basin into a global grain supply chain, integrated the American interior with the global market and concentrated wealth in river hubs like New Orleans and St. Louis.
From The Wall Street Journal • Apr. 24, 2026
A key suspect in one of the most notorious killings of the Syrian civil war has been arrested, Syria's interior minister has said.
From BBC • Apr. 24, 2026
All she can point to is a garage stuffed with throw pillows, remnants of her shriveled dream to design interior spaces for affluent clients.
From Salon • Apr. 23, 2026
Wolf described it as a "treasure trove" that researchers will continue to explore for further insights into Earth's deep interior.
From Science Daily • Apr. 23, 2026
The whole interior of the truck was gone—the seats, the upholstery, the steering wheel, the dashboard.
From "Two Degrees" by Alan Gratz
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
