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 brand's watermelon lineup includes fan-favorite Watermelon Hydration, Watermelon X-Treme, and Gut Health, among other options. —Saman Shafiq, USA Today, 12 May 2026

For something a little fruitier, the Belly Floppin’ Melon Margarita is a spirited watermelon cocktail made with tequila, vodka, triple sec, and lime. —Abigail Wilt, Southern Living, 11 May 2026

Indeed, the more than a dozen margarita flavors include peach, raspberry, mango, watermelon, passion fruit and green apple. —Jenna Thompson, Kansas City Star, 9 May 2026

Some of the new cocktails include the Dubai Tai, which mixes rum, a pistachio simple syrup and chocolate, and the Ay Dio Tigre, made with tequila, strawberry, watermelon, tajin and red food coloring. —Carlos Rico, San Diego Union-Tribune, 8 May 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