To take action or do something. She decided to act quickly to prevent further damage.
To perform a role in a play, movie, or television show. He was excited to act in his first major film.
To behave in a specified way. He tends to act shy around new people.
To have an effect or influence. The medicine will act on the symptoms within an hour.
To serve or function in the capacity of someone or something; to perform the duties of. During the summer, he will act as the company’s legal counsel.
The heroic act of saving the child from the fire was widely praised.
A formal decision, law, or statute made by a legislative body. The new act was passed by Congress to improve healthcare services.
A main division of a play, ballet, or opera. The first act of the play set the stage for the dramatic events to follow.
A pretense or show; a display of behavior that is not genuine. His tough demeanor was just an act to impress his friends.
A performer or group of performers regarded as a single entertainment unit. The opening act was a popular local band.