Real Dictionary

drama
countable noun: A drama is a serious play for the theatre, television, or radio.
uncountable noun: You use drama to refer to plays in general or to work that is connected with plays and the theatre, such as acting or producing.
variable noun: You can refer to a real situation which is exciting or distressing as drama.

drama in American English
a literary composition that tells a story, usually of human conflict, by means of dialogue and action, to be performed by actors; play; now often specif., any play that is not a comedy
noun: a composition in prose or verse presenting in dialogue or pantomime a story involving conflict or contrast of character, esp. one intended to be acted on the stage; a play

drama in British English
noun: a work to be performed by actors on stage, radio, or television; play