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Boswash

American  
[baws-wosh, -wawsh, bos-] / ˈbɔsˌwɒʃ, -ˌwɔʃ, ˈbɒs- /

noun

Informal.

  1. the heavily populated area extending from Boston to Washington and including New York City, Philadelphia, and Baltimore.

Etymology

Origin of Boswash

Bos(ton) + Wash(ington)

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.

Cosmopolitan Boswash will be the home of "New York liberals, Boston bankers, tired or creative intellectuals in publishing, entertainment and the arts, and political Washington."

From Time Magazine Archive

Almost half the U.S. population, predict the Hudson Institute's Herman Kahn and Anthony J. Wiener, will live in three huge maritime megalopolises, which they call "Boswash," "Chipitts" and "Sansan."

From Time Magazine Archive

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.