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subbasement

American  
[suhb-beys-muhnt] / ˈsʌbˌbeɪs mənt /

noun

  1. a basement or one of a series of basements below the main basement of a building.


subbasement British  
/ ˈsʌbˌbeɪsmənt /

noun

  1. an underground storey of a building beneath the main basement

"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 subbasement

First recorded in 1900–05; sub- + basement

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.

See Examples For:

For one thing, the hotel’s reputation had plummeted into its subbasement, with mocking public complaints about peeling wallpaper, worn furniture and bedbugs.

From Seattle Times Mar. 4, 2023

The institute also converted a vast subbasement in its main building into a shelter with cots and a cooking area.

From Science Magazine Dec. 6, 2022

This one had restricted levels above the lecture hall and admin offices, as well as a second bay of elevators and stairs which led to five tiers of subbasement.

From Slate Aug. 27, 2022

In 2017, Amtrak had projected it could have completed the extensive fixes in the subbasement by this year.

From Washington Post Apr. 14, 2022

He was in his subbasement lab holding up a small plastic bag with one speckled purple jelly bean sealed inside.

From "The Smartest Kid in the Universe" by Chris Grabenstein

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