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

---

Etymology

Origin of subbasement

First recorded in 1900–05; sub- + basement

Example Sentences

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

They quickly followed the paths that would take them across the campus to Corey Hall and Mr. Farooqi’s subbasement chemistry lab.

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

Related Words

• apartment
• basement
• vault