jam-packed
Britishadjective
Explanation
Anything that's jam-packed is as crowded or full as it can be. If you hate crowds, you'll want to avoid the jam-packed shopping malls around Christmas time. A subway car in Tokyo at rush hour is jam-packed, while a bus in a small village in Germany may have only a few passengers. And a dull day in traffic court will be sparsely attended, but during a dramatic celebrity trial the courthouse is bound to be jam-packed. This adjective is informal, dating from about the turn of the twentieth century. Earlier it was jam-full — both come from the "squeeze into a space" sense of jam.
Vocabulary lists containing jam-packed
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.
Like Sinner, Nadal had a jam-packed schedule in the build-up to that year's French Open, winning titles in Monte-Carlo, Barcelona, and Rome and reaching the final in Madrid, where he lost to Roger Federer.
From BBC ● May 28, 2026
As well as the headline acts, the weekend was jam-packed with live music and DJ sets across three different stages as well as food and drink.
From BBC ● May 24, 2026
Across the roughly 430-acre campus south of Louisville, warehouses are jam-packed with barrels full of dark-brown liquor that may not have buyers.
From The Wall Street Journal ● May 17, 2026
The dip comes ahead of a jam-packed day tomorrow that will provide investors with a lot of information on the health of both the economy and major tech firms.
From Barron's ● Apr. 28, 2026
Already jam-packed with computers and equipment, the cramped space had turned positively claustrophobic with the many spectators now squeezing into it.
From "The Martian" by Andy Weir
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
