Synonyms

baby boom

American

noun

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

baby boom British

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of baby boom

First recorded in 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Barron's • Mar. 30, 2026

The aging of the baby boom generation is the main force driving this caregiving crisis: About 10,000 baby boomers are turning 65 every day.

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

For the baby boom generation, those included the JFK assassination and the Vietnam War.

From Salon • Dec. 19, 2025

This spring in particular has seen quite the baby boom.

From "Wishtree" by Katherine Applegate

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023