A floor of a building below ground level. / (geology) A mass of igneous or metamorphic rock forming the foundation over which a platform of sedimentary rocks is laid.

plural of basement

The amount that fills a basement.

plural of basementful

(US) A simple, often damp, basement that has an earth floor.

plural of basement membrane

plural of bargain basement

plural of bargain-basement

(idiomatic, sports) A team in or around the relegation zone.

An area within a retail store, especially an area located below ground level, where the least costly merchandise can be found. / (attributively, often hyphenated) Inexpensive.