A curtain made from blackout material, designed to block light (e.g. sunlight through a window) much more than a standard curtain

Away from public view. / Used other than figuratively or idiomatically: see behind, curtain.

plural of blackout curtain

A fireproof curtain which can be lowered to stop the spread of fire between the auditorium and the stage

plural of safety curtain

plural of final curtain

(idiomatic) the end of something has come

(theater, chiefly in the plural) A stage curtain of a kind that rises diagonally, not revealing the entire stage.

plural of tableau curtain

A legal barrier to technology transfer and sale of advanced computer equipment between China and the West.