firstborn

adjective

first·​born ˈfərs(t)-ˈbȯrn 

: first brought forth : eldest

firstborn noun

Examples of firstborn in a Sentence

Recent Examples on the Web

Wave Set Cephus Cardi B’s firstborn son arrived on September 4, 2021, in Atlanta, Georgia. — Emma Banks, InStyle, 27 July 2026

Everyone except Keisha, making for a precarious situation as Nuck is the father of Keisha’s firstborn. — Demetrius Patterson, HollywoodReporter, 23 July 2026

The joint post is a sweet black and white picture of their firstborn Marco, 3, cradling his little sister in a hospital bed. — Madeleine Marr, Miami Herald, 21 July 2026

The singer asked for their firstborn in a video message thanking them for their generous $2 million donation to her Imagination Library ahead of their upcoming wedding. — Emlyn Travis, Entertainment Weekly, 3 July 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for firstborn

• adorn
• airborne
• blackthorn
• broomcorn
• buckhorn
• buckthorn
• careworn
• foodborne
• forborne
• forewarn
• forlorn
• forsworn

Kids Definition

firstborn

adjective

first·​born ˈfərs(t)-ˈbȯ(ə)rn 

: born first : eldest

firstborn noun