act

v. to take action or do something for a specific reason.

v. to take action or exert energy in order to achieve a specific result. Often used intransitively.

“The police had to act quickly to stop the thief from escaping.”

“The emergency services must act decisively when a natural disaster strikes to minimize the loss of life and property.”

v. to perform a part in a play, movie, or television show.

v. to perform a fictional role in a dramatic production. Can be used transitively with a role as the object or intransitively.

“She has wanted to act in a Hollywood movie since she was a child.”

“He was chosen to act the part of the protagonist because of his ability to convey complex emotions without speaking.”

v. to behave in a particular way.

v. to conduct oneself or behave in a specified manner, often temporarily or falsely.

“Stop acting like a child and help me clean the kitchen.”

“The suspect began acting suspiciously as soon as the investigators mentioned the missing documents.”

n. something that someone does.

n. a single thing done; a deed or action.

“Giving her seat to the elderly man was a kind act.”

“The charity described the donation as a selfless act of generosity that would fund the project for a year.”

n. a law that has been officially passed by a government.

n. a formal decision or law passed by a legislative body. Often capitalized when referring to a specific law.

“The new Act of Parliament will change how taxes are collected.”

“The Clean Air Act was introduced to regulate industrial emissions and improve public health in urban areas.”

Formal

n. one of the main parts that a play or opera is divided into.

n. a major division of a dramatic work, such as a play, ballet, or opera.

“The hero doesn't appear until the second act of the play.”

“The tension builds throughout the first act, culminating in a dramatic confrontation just before the intermission.”

n. a short performance or a person/group that performs as part of a larger show.

n. a short performance or one of several performances in a variety show or circus.

“The circus had a very funny clown act that the children loved.”

“The festival organizers are still looking for a headline act to close the main stage on Sunday night.”