ACT

Perform an action, or work out or perform (an action)

Example: "Think before you act"

Behave in a certain manner; show a certain behavior; conduct or comport oneself

Example: "You should act like an adult"

Play a role or part

Example: "Gielgud played hamlet"

Discharge one's duties

Example: "She acts as the chair"

Pretend to have certain qualities or state of mind

Example: "He acted the idiot"

Be suitable for theatrical performance

Example: "This scene acts well"

Have an effect or outcome; often the one desired or expected

Example: "The voting process doesn't work as well as people thought"

Be engaged in an activity, often for no particular purpose other than pleasure

Behave unnaturally or affectedly

Example: "She's just acting"

Perform on a stage or theater

Example: "She acts in this play"