(construction) A layer of concrete, typically 2 to 6 inches thick, poured below the structural slab but above a layer of wet or muddy soil.

(construction) A horizontal placement of concrete directly over a prepared earth substrate.

(construction) A method of construction using two separate concrete slabs: the first placed as a slab on grade or suspended slab and covered with waterproofing and a drainage system; the second, or topping slab, placed over the underlying slab and waterproofing.

(Indo-European studies) The last phase of Proto-Slavic language, the Late Proto-Slavic. / (Indo-European studies, proscribed) Proto-Slavic

plural of slap shot

(informal) Excellent, first-class.

Alternative form of Slavey

Obsolete form of Slav.

Synonym of Old Church Slavonic

The Old East Slavic language.