1
: recently born
2
: born anew
Examples of newborn in a Sentence
Adjective
felt like a newborn activist after that pep rally
Noun
a mother goat and all of her newborn
intentionally bought clothes that were too big for her newborn but which undoubtedly would fit him in a few months
Recent Examples on the Web
Anniek Bao, CNBC, 1 Oct. 2025
The incredibly faint signal was consistent with the rapid spin of a newborn magnetar.
—Chris Young, Interesting Engineering, 1 Oct. 2025
Lucy Notarantonio, MSNBC Newsweek, 1 Oct. 2025
Listeria infection, or listeriosis, is most likely to sicken pregnant people and newborns, adults over 65 and people with weakened immune systems.
—Rachel Treisman, NPR, 30 Sep. 2025
See All Example Sentences for newborn
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Adjective
Now, the 35-year-old resides in Portugal's capital, Lisbon, with her partner, Swiss artist-filmmaker Tobias Madison, and their newborn child.
—Anniek Bao, CNBC, 1 Oct. 2025
The incredibly faint signal was consistent with the rapid spin of a newborn magnetar.
—Chris Young, Interesting Engineering, 1 Oct. 2025
Noun
Welcoming a newborn into a home with other children can be overwhelming, but one mom’s 3-year-old quickly put her at ease, assuring her that everything would be OK.
—Lucy Notarantonio, MSNBC Newsweek, 1 Oct. 2025
Listeria infection, or listeriosis, is most likely to sicken pregnant people and newborns, adults over 65 and people with weakened immune systems.
—Rachel Treisman, NPR, 30 Sep. 2025
See All Example Sentences for newborn
Cite this Entry
“Newborn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/newborn. Accessed 8 Oct. 2025.
Copy CitationKids Definition
newborn
1 of 2 adjective
new·born
ˈn(y)ü-ˈbȯ(ə)rn 
1
: recently born
2
: born anew
newborn
2 of 2 noun
plural newborn or newborns
: a newborn individual
Medical Definition
newborn
1 of 2 adjective
new·born
ˈn(y)ü-ˈbȯ(ə)rn
1
: recently born
a newborn infant
2
: affecting or relating to the newborn
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