baby boom

American  

noun

1. a period of sharp increase in the birthrate, as that in the U.S. following World War II.

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baby boom British  

noun

1. Also called (esp Brit): the bulge.  a sharp increase in the birth rate of a population, esp the one that occurred after World War II

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Etymology

Origin of baby boom

First recorded in 1950–55

Example Sentences

But you mustn't confuse the luckiness of some within the late baby boom, with the luckiness of the whole cohort.

From BBC • May 17, 2026

China probably can’t subsidize its way back to a baby boom.

From Barron's • Mar. 30, 2026

As Pew notes in other research, there were 76 million births during the baby boom generation, and the oldest among that group are now hitting 80.

From MarketWatch • Feb. 26, 2026

Theme parks flourished in the wake of World War II, driven by the country’s economic prosperity and resulting baby boom.

From The Wall Street Journal • Jan. 23, 2026

This spring in particular has seen quite the baby boom.

From "Wishtree" by Katherine Applegate