Actuate
/ˈæk.tʃu.eɪt/
verbC1
Definition
Actuate means to make a machine or system begin to work by giving it power or a signal. It can also mean to cause a person to act or do something because of a reason or feeling. Usually, it involves starting an action or movement.
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See It in Action
To make a machine or device start working
- •The lever actuates the machine when pulled.
- •The alarm is actuated by smoke detection.
- •Pressing the switch actuates the conveyor belt.
To cause a person to act because of a reason or feeling
- •His strong sense of justice actuated him to speak out.
- •Fear actuated the soldiers to defend the base.
- •Love can actuate people to do brave things.
Make It Stick
- ✓Think of "actuate" like "start," but more formal and often about machines or strong reasons causing action.
- ✓Picture pressing a button that makes a robot arm move or a door open automatically.
- ✓It’s the feeling when you decide to do something because you really want to or have to, like when motivation pushes you forward.
- ✓Sounds like "act-you-ate" → imagine someone acting (doing) because they "ate" energy and now they move.
- ✓In stories, machines or robots are actuated to perform tasks; people are actuated by feelings like anger or love to act.
- ✓NOT like "turn on" (simple switch action), actuate often means a cause behind the action, not just pressing a button.
- ✓NOT like "motivate" (which means giving reason or desire), actuate means actually causing the action to happen, not just inspiring it.
Try Other Words
- •Activate: to make something active or working (Use when focusing on making a device or system active)
- •Trigger: to cause something to happen suddenly (Use when the action happens quickly or automatically)
- •Motivate: to give someone a reason to act (Use when focusing on reasons or feelings causing action)
- •Start: to begin an action or process (Use in general, less formal contexts)
Unboxing
- •Word parts: "act" (to do or move) + suffix "-uate" (forms verbs meaning to cause or make)
- •Etymology: From Latin "actuare," meaning "to put into motion" or "to do"
- •Historical development: Originally used in technical and formal language to mean causing movement or action
- •Modern usage: Used in engineering for machines and in formal speech or writing about causing action or behavior
Reflect & Connect
•What kinds of machines or devices around you might be actuated by small actions or signals?
•Can you think of a time when a strong feeling actuated you to do something important?
Fill in the blanks
1.The emergency brake is actuated when the driver ___ the red button quickly.
2.His desire to help others was the feeling that actuated him ___ volunteer work.
3.Unlike simply turning on a light, to actuate a machine often requires a ___ or mechanical movement.
4.The security system is actuated automatically ___ detecting movement in the room.
5.Fear can actuate people to act ___ or make decisions they normally wouldn’t.
6.When the switch is pressed, it actuates the motor to ___ the machine’s parts.
7.The engineer explained how the small motor actuates the ___ of the robot arm.