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.
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
The country’s nerves have been frayed, Minister for Social Affairs Aqqaluaq B. Egede told a jam-packed room of local and international journalists.
From The Wall Street Journal • Jan. 22, 2026
And the rapper has jam-packed the 17-track offering with explorations of various genres, from punk and trap to indie.
From BBC • Jan. 16, 2026
The Filipina-American stylist has come off a jam-packed year.
From Los Angeles Times • Jan. 13, 2026
They were driving through a valley jam-packed with rows of houses wrapped around hillsides like serpentine belts.
From "Book Scavenger" by Jennifer Chambliss Bertman
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.
