Dictionary.com
Thesaurus.com

firstborn

American  
[furst-bawrn] / ˈfɜrstˈbɔrn /

adjective

  1. first in the order of birth; eldest.


noun

firstborns plural
  1. a firstborn child.

  2. a first result or product.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of firstborn

Middle English word dating back to 1300–50; see origin at first, born

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The track finds mother and daughter writing to each other about their relationship, reconciling the effects Madonna’s fame had on her firstborn child.

From Salon Jul. 8, 2026

"We came here from Ukraine, and Matilda was our firstborn here in Australia," he said earlier this week.

From Barron's Dec. 18, 2025

At our YMCA’s “toddler time,” my firstborn son had only a passing interest in the nylon tunnels and scooter boards.

From The Wall Street Journal Sep. 25, 2025

"I always had this thing that death was on my shoulder, 24/7. My dogs, as a kid. My mum. My firstborn."

From BBC Sep. 16, 2025

He has gone from being the obedient firstborn son to being scared of his own parents.

From "Vincent and Theo: The Van Gogh Brothers" by Deborah Heiligman

Barely two years in, Maye’s the shiniest star in a merciless sports metropolis—and he’s one Sunday victory from all the local Bradys naming their future firstborns Drake.

From The Wall Street Journal Feb. 5, 2026

Indeed, firstborns are more likely to be perfectionists than younger siblings.

From Salon Apr. 30, 2021

And John Richter and his D.C. crew, who through breakups and firstborns always gathered around the same candlelit tables.

From Washington Post Nov. 24, 2020

Looking back on this photo of us with our firstborns, it makes me realize how much I took for granted the chance to spend time with friends.

From New York Times Apr. 24, 2020

The lineage of Atlas extended in a grand succession of generations, and his kingdom was ruled in succession by the firstborns.

From History of the Incas by Markham, Clements R. (Clements Robert), Sir

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training