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• interior
  interior

  adjective

  being within; inside of anything; internal; inner; further toward a center.
• Interior
  Interior

  noun

  (in titles) the domestic or internal affairs of any of certain countries

interior

American  

[in-teer-ee-er] / ɪnˈtɪər i ər /

adjective

1. being within; inside of anything; internal; inner; further toward a center.

   the interior rooms of a house.

   Antonyms:

   exterior

2. of or relating to that which is within; inside.

   an interior view.

3. situated well inland from the coast or border.

   the interior towns of a country.

4. of or relating to the inland.

5. domestic.

   interior trade.

6. private or hidden; inner.

   interior negotiations of the council.

7. pertaining to the mind or soul; mental or spiritual.

   the interior life.

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noun

• interiors
  plural

1. the internal or inner part; inside.

   Antonyms:

   exterior

2. Architecture.

   1. the inside part of a building, considered as a whole from the point of view of artistic design or general effect, convenience, etc.

   2. a single room or apartment so considered.

3. a pictorial representation of the inside of a room.

4. the inland parts of a region, country, etc..

   the Alaskan interior.

5. the domestic affairs of a country as distinguished from its foreign affairs.

   the Department of the Interior.

6. the inner or inward nature or character of anything.

7. Mathematics. the largest open set contained in a given set, as the points in a circle not including the boundary.

interior ¹ British  

/ ɪnˈtɪərɪə /

noun

1. a part, surface, or region that is inside or on the inside

   the interior of Africa

2. inner character or nature

3. a film or scene shot inside a building, studio, etc

4. a picture of the inside of a room or building, as in a painting or stage design

5. the inside of a building or room, with respect to design and decoration

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adjective

1. of, situated on, or suitable for the inside; inner

2. coming or acting from within; internal

3. of or involving a nation's domestic affairs; internal

4. (esp of one's spiritual or mental life) secret or private; not observable

Interior ² British  

/ ɪnˈtɪərɪə /

noun

1. (in titles) the domestic or internal affairs of any of certain countries

   Department of the Interior

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Synonym Usage

See inside.

Other Word Forms

Derived Forms

• interiority
  noun
• interiorly
  adverb

Inflected Forms

Nouns

• interiors
  plural

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Etymology

Origin of interior

First recorded in 1480–90; from Latin, comparative adjective equivalent to inter- “inward” + -ior comparative suffix; see exterior

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Explanation

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.

Example Sentences

See Examples For:

interior Interior interiors

Sliding glass doors further connect the interior to the outdoor areas, allowing the lush backyard to serve as an extension of the home’s living space.

From MarketWatch ● Oct. 15, 2026

Police have opened internal investigations into 36 allegations of officer violence against demonstrators, according to the interior ministry.

From Barron's ● Oct. 14, 2026

Adrien Pillay, 36, an interior designer who helped form Paris Condition Canine, said that private events like dog week can play an important role.

From The Wall Street Journal ● Oct. 14, 2026

This uneven heating created a temperature difference across the Moon's molten interior, setting off large-scale horizontal circulation.

From Science Daily ● Oct. 14, 2026

The sidewalks outside Euston Station were even more crowded than the interior of the station had been.

From "The Hidden Gallery" by Maryrose Wood

Interior Minister Ervin Demo said Friday that 156 people had been injured, including 97 police, in recent days.

From Barron's ● Oct. 16, 2026

Interior Minister Laurent Nunez said nearly 900 police officers had also suffered injuries during the protests.

From Barron's ● Oct. 14, 2026

When Lands cited a third Interior Department employee, the judge said she needed to hear from that person, too.

From The Wall Street Journal ● Oct. 12, 2026

Reyes said she would reconvene the hearing Tuesday to question additional Interior Department officials about why the work proceeded over the holiday weekend.

From Salon ● Oct. 12, 2026

Interior Secretary Ickes stepped up to the bank of microphones.

From "The Voice That Challenged a Nation: Marian Anderson and the Struggle for Equal Rights" by Russell Freedman

“Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.”

From Los Angeles Times ● Oct. 1, 2026

Upon entering the home, guests are welcomed into an oversized gallery, where large windows help fill the interiors with natural light.

From MarketWatch ● Sep. 28, 2026

Painted characters and toyboxes made of wood are installed in scenes that replicate toy stores and home interiors, where figurines scattered on the floor suggest that we’ve just interrupted a child’s playtime.

From The Wall Street Journal ● Sep. 24, 2026

Behind it, a revolving turntable exposed rubble-strewn outdoor expanses and the grim, stony interiors of Macbeth’s castle.

From The Wall Street Journal ● Sep. 24, 2026

I’m suspended, as in airports or dentists’ waiting rooms, expecting yet another interlude that will be textureless and without desire, like a painkiller or the interiors of planes.

From "Cat's Eye" by Margaret Atwood

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Related Words

• internal
• remote

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