| Orange (n.) The fruit of a tree of the genus Citrus (C. Aurantium). It is usually round, and consists of pulpy carpels, commonly ten in number, inclosed in a leathery rind, which is easily separable, and is reddish yellow when ripe. |
| Orange (n.) The tree that bears oranges |
| Orange (n.) The color of an orange |
| Orange (a.) Of or pertaining to an orange |
| Osage orange () An ornamental tree of the genus Maclura (M. aurantiaca), closely allied to the mulberry (Morus) |
| Sea orange () A large American holothurian (Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles are bright red. |
| orange bat / orange horseshoe bat / Rhinonicteris aurantius a common bat of northwestern Australia having orange or yellow fur |
| orange tortrix / tortrix Argyrotaenia citrana California moth whose larvae live in especially oranges |
| orange grove grove of orange trees |
| scarlet / vermilion / orange red c a variable color that is vivid red but sometimes with an orange tinge |
| orange / orangeness orange color or pigment, any of a range of colors between red and yellow |
| reddish orange an orange color closer to red than to yellow |
| orange yellow / saffron a shade of yellow tinged with orange |
| orange peel strips of orange peel cooked in sugar and coated with sugar |
| orange marmalade marmalade made from oranges |
| orange toast buttered toast with sugar and grated orange rind and a little orange juice |