watermelon

noun

wa·​ter·​mel·​on ˈwȯ-tər-ˌme-lən 

ˈwä-

1

: a large oblong or roundish fruit with a hard green or white rind often striped or variegated, a sweet watery pink, yellowish, or red pulp, and usually many seeds

2

: a widely cultivated African vine (Citrullus lanatus synonym C. vulgaris) of the gourd family that bears watermelons

Examples of watermelon in a Sentence

Recent Examples on the Web

The prebiotics help keep skin smooth and balanced, while the peptides help firm, and the blend of hyaluronic acid, apple, and watermelon works as a power team to smooth fine lines. —Melony Forcier, InStyle, 25 Feb. 2026

National Margarita Day specials Azul Rooftop Offers $8 specialty margaritas all day, including prickly pear, strawberry, watermelon and jalapeño variations. —Ana Gutierrez, Austin American Statesman, 22 Feb. 2026

Southerners know that tomato and watermelon go together like unexpected best friends. —Kaitlyn Yarborough, Southern Living, 21 Feb. 2026

Honorable mentions New to the regular concession offerings, the Baja-style fruit cups are a light and refreshing snack containing slices of watermelon, mango, jicama and cucumber and they are garnished with chamoy, lime juice and Tajin. —Carlos Rico, San Diego Union-Tribune, 18 Feb. 2026

Word History

First Known Use

1598, in the meaning defined at sense 1

Rhymes for watermelon

• endothelin
• gibberellin
• felon
• melon
• snellen
• tellin
• muskmelon

Kids Definition

watermelon

noun

wa·​ter·​mel·​on ˈwȯt-ər-ˌmel-ən 

ˈwät-

1

: a large oblong or rounded fruit with a hard outer shell, a sweet red juicy pulp, and usually many seeds

2

: a widely grown African vine of the gourd family that produces watermelons