drywall

Short definition from Wiktionary

Noun

1. 1
   A building material comprising a sheet of gypsum sandwiched between two pieces of heavy paper, used mainly for interior walls and ceilings.
2. 2
   A wall made of this.
3. 3
   A stone wall constructed without mortar or cement.

Verb

1. 1
   To install and finish drywall.