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

Watermelon Margarita Photo : iStock/Getty Images Plus The most straightforward way to add watermelon to your Margarita is also the easiest: Just take the cocktail and add watermelon juice to it. —Jeremy Repanich, Robb Report, 11 Apr. 2025

Eating watermelon instead of low-fat cookies daily for four weeks was associated with lower body weight, blood pressure, waist-to-hip ratio, and body mass index (BMI).21 13. —Ann Pietrangelo, Verywell Health, 7 Apr. 2025

In Mandalay, local residents gave slices of watermelon to Chinese volunteers taking a break from the high temperatures. —David Rising, Time, 4 Apr. 2025

However, brand notes highlight watermelon, peach kernels, and fresh almonds on the nose. —David Thomas Tao, Forbes, 22 Mar. 2025

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