Definition of: curtain

(kûr′tən) noun
1. A piece of fabric, often adjustable, hung for decoration, concealment, or to shut out light, as before a wall, window, doorway, etc.
2. Something that conceals, covers or separates like a curtain.
3. Part of a rampart that connects the flanks of two bastions or towers.
4. Archit. That portion of a wall between two towers.
5. In the theater: a The drapery hanging at the front of a stage, drawn up or aside to reveal the stage. b The speech or situation in a play occurring immediately before the fall of the curtain.
—v.t.
1. To supply or adorn with or as with a curtain or curtains.
2. To conceal or shut off as with a curtain; cover. [<OF curtine <LL cortina]