Every action we take has consequences on our future.

Actinium is a radioactive chemical element that was discovered in 1899.

The signing of this act marks the beginning of a new era.

She leads an active and healthy life.

To start the machine, you need to activate the red button.

Activating the SIM card is required to use the service.

Thorium is an actinide that is used in some types of nuclear reactors.

He acted with courage in the battle.

The main actant of the story is the hero.

Actants are key characters in the story.