Actin is a pure protein that plays a crucial role in muscle development.

Actinium is a radioactive element.

The actinide series consists of elements with atomic numbers ranging from 89 to 103.

Action painting is a form of abstract art where paint is splashed, dripped, or poured onto the canvas.

All crew members, action stations!

The evidence presented in the case was actionable, leading to a successful prosecution.

Regular exercise is important for the activation of the body.

Activated carbon is commonly used for decolorization, detoxification, and odor control.

She is actively involved in activism for environmental protection.

She wrote a letter.