interior

Everyday

1. The interior is the inside of something, like a building, car or box. tree →
2. The interior of a country or continent is the part far from the coast. tree →
3. Interior describes things on the inside: interior walls, interior design. tree →
4. (maths) An interior angle is an angle inside a shape at one of its corners. tree →

In the lessons

In geometry: interior angles of a triangle add up to 180 degrees; of a square, 360 degrees. In geography: the dry interior of Australia. In everyday life: interior design, interior of a car. Phrases: interior angle, interior design, the interior of.

Examples

• The interior of the castle was cold and dark. tree →
• The car has a leather interior. tree →
• Few people live in the interior of Australia. tree →
• The interior angles of a triangle add up to 180 degrees. tree →
• She works as an interior designer. tree →
• Paint the interior walls white. tree →
• "Sancta Maria!" resounded from the interior. tree →

Note

Opposite: exterior (outside). Countable noun. In maths: interior angles of a triangle sum to 180°, of any four-sided shape to 360°; for a shape with n sides the sum is (n − 2) × 180°.