firstborn

adjective

first·​born ˈfərs(t)-ˈbȯrn How to pronounce firstborn (audio)
: first brought forth : eldest
firstborn noun

Examples of firstborn in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The final book, First Comes Scandal, features a peek at a young Violet and Edmund and their three firstborn as children. Sara Netzley, Entertainment Weekly, 25 Jan. 2026 The parents of four have not publicly responded to their firstborn’s stunningly cringeworthy claims. Madeleine Marr, Miami Herald, 21 Jan. 2026 As with her firstborn, McAdams has not released the name or birthday of her daughter. Odeya Pinkus, InStyle, 21 Jan. 2026 One is very much the responsible firstborn (twin A) and the other is most definitely the free-spirited baby of the family. Kayla Grant, PEOPLE, 20 Jan. 2026 See All Example Sentences for firstborn

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of firstborn was in the 14th century

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Cite this Entry

“Firstborn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/firstborn. Accessed 1 Feb. 2026.

Kids Definition

firstborn

adjective
first·​born ˈfərs(t)-ˈbȯ(ə)rn How to pronounce firstborn (audio)
: born first : eldest
firstborn noun

More from Merriam-Webster on firstborn

Last Updated: - Updated example sentences
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