newborn

1 of 2

adjective

new·​born ˈnü-ˌbȯrn 

ˈnyü-

1

: recently born

2

: born anew

newborn

2 of 2

noun

plural newborn or newborns

: a newborn individual

Synonyms

Adjective

• refreshed
• new
• revived
• reborn
• resuscitated
• rested
• renewed
• regenerated
• energized
• reanimated

Noun

• child
• baby
• infant
• toddler

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

Adjective

Any new mom knows that keeping up with newborn dishes is a never-ending task. —Kate McGregor, Architectural Digest, 8 Oct. 2025

In the caption for the photos, the mom of seven reflected on the first few weeks with her newborn. —Kayla Grant, PEOPLE, 8 Oct. 2025

Noun

According to the American Academy of Pediatrics, newborns should always ride in a rear-facing infant seat,1 including the ride home from the hospital. —Hildara Araya, Parents, 7 Oct. 2025

Listeria infections, while rare, can be life-threatening for older adults, pregnant people, newborns and those with weakened immune systems. —Moná Thomas, PEOPLE, 7 Oct. 2025

Word History

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Noun

1786, in the meaning defined above

Phrases Containing newborn

• hemolytic disease of the newborn

Kids 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

newborn

2 of 2 noun

new·​born -ˌbȯ(ə)rn 

plural newborn or newborns

: a newborn infant : neonate