Act
in dramatic language, a portion of a play performed continuously, after which the representation is suspended for a little. As early as the time of Horace there were five acts in a drama, but this number is frequently modified on the modern stage.
In parliamentary language, an act of congress, legislature, etc.
In law: (1) Anything officially done by the court, as the phrases "Acts of Court," "Acts of Sederunt," etc. (2) An instrument in writing for declaring or proving the truth of anything.