baby boom

noun

: a marked rise in birth rate (as in the U.S. following the end of World War II)

Examples of baby boom in a Sentence

There was a baby boom in the U.S. after World War II.

Recent Examples on the Web

In the years following the ceasefire — technically an agreement to pause attacks, as no formal peace treaty was ever signed, meaning the Koreas remain at war — a baby boom caused the human population to soar on both sides of the border, rising from around 30 million people to more than 78 million. — The Los Angeles Times, Mercury News, 18 June 2026

The result was a suburban boom that coincided with the baby boom. — Encyclopedia Britannica, 9 June 2026

Social Security's trust fund helps cover the gap between the program's income and benefit obligations, which have outpaced revenue as the baby boom generation retires and the number of beneficiaries grows. — Mary Cunningham, CBS News, 3 June 2026

And this time around, the huge baby boom generation is in the bull’s-eye of those who would be impacted. — Terry Savage, Chicago Tribune, 2 June 2026

Word History

First Known Use

1879, in the meaning defined above

Rhymes for baby boom

• anteroom
• assume
• backroom
• ballroom
• barroom
• bathroom
• bedroom
• boardroom
• bridegroom
• classroom
• cloakroom
• consume

Kids Definition

baby boom

noun

: a marked rise in a birthrate (as in the U.S. after World War II)

baby boomer

ˈbü-mər

noun