1. a large round citrus fruit with yellow or pink skin and sour pulp
2. the evergreen tree that produces this fruit

Examples

• I had half a grapefruit for breakfast.
• The grapefruit was too sour for my taste.
• She squeezed fresh grapefruit juice.
• Pink grapefruit is sweeter than white grapefruit.
• The grapefruit tree in our backyard produces fruit all year.
• He added sugar to his grapefruit to make it less tart.
• Grapefruit is rich in vitamin C.