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
Kff Health News, Oc Register, 16 Sep. 2025
Set in a retrofuturistic 1960s, the adventure has the heroes scrambling to deal with an existential crisis when the planet-devouring Galactus (Ralph Ineson) shows up, threatening to consume Earth unless Reed and Sue give him their newborn son.
—Brian Truitt, USA Today, 16 Sep. 2025
Daryl Austin, USA Today, 23 Sep. 2025
This condition, called bronchiolitis, can cause wheezing and is most dangerous in the first months of life, when newborns’ airways are extremely narrow.
—Liz Szabo, Scientific American, 23 Sep. 2025
See All Example Sentences for newborn
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Adjective
Schaffner is still an alternate liaison member of ACIP, and hopes to express his support for universal newborn vaccination at the next meeting.
—Kff Health News, Oc Register, 16 Sep. 2025
Set in a retrofuturistic 1960s, the adventure has the heroes scrambling to deal with an existential crisis when the planet-devouring Galactus (Ralph Ineson) shows up, threatening to consume Earth unless Reed and Sue give him their newborn son.
—Brian Truitt, USA Today, 16 Sep. 2025
Noun
Less common but still important routes of transmission include mother-to-child spread during childbirth, which can cause eye infections or pneumonia in newborns.
—Daryl Austin, USA Today, 23 Sep. 2025
This condition, called bronchiolitis, can cause wheezing and is most dangerous in the first months of life, when newborns’ airways are extremely narrow.
—Liz Szabo, Scientific American, 23 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 24 Sep. 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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