act

A main division of a play or opera.

"The second act was dramatic."

A short performance or routine, often in entertainment.

"The comedy act was hilarious."

To perform a role in a play or film.

"He loves to act on stage."

A written law passed by a parliament.

"The new Act was passed."

A specific deed, action, or thing done.

"It was a kind act."

To take action or perform a deed.

"She acted quickly to help."

To behave in a specified manner or way.

"Don't act like a child."