subbasement

[ suhb-beys-muhnt ]

noun

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

subbasement

/ ˈsʌbˌbeɪsmənt /

noun

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

Word History and Origins

Origin of subbasement¹

First recorded in 1900–05; sub- + basement

Related Words

• apartment
• basement
• vault