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 of newborn

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

Filmed off the coast of New South Wales, Australia, on Tuesday, the video shows the water fill with blood before the newborn calf emerges to take its first breath. — Lucia I Suarez Sang, CBS News, 31 July 2026

Armenta was hiding in the couple’s trailer when law enforcement arrived and found the newborn, who had been moved to a main house by Lemke. — Alex Brizee, Idaho Statesman, 30 July 2026

Noun

Bloomers for $60; $88 for tees; and close to $200 for a dress made for a newborn who will likely outgrow it in a few weeks. — New York Times, 31 July 2026

The intramuscular formulation of penicillin was the only treatment that could prevent pregnant patients from passing syphilis to their newborns. — Eric Boodman, STAT, 31 July 2026

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