shut down

verb

To close, terminate, or end.
“They are planning to shut down the entire building at the end of the month.”
“The time is now, the place the grim industrial city of Shaoyang, China, which has just been informed that its No. 2 Space Rocket Factory is going to shut down.”
To turn off or stop.
“It's a good idea to shut down the machine before you leave.”
“My computer is shutting down as we speak.”
To stop offering a service, such as a bar.
“The bar will start shutting down at two o'clock in the morning.”
“On the breakfast buffet, the waffle area shuts down first.”
To emotionally withdraw into oneself as a defense mechanism; to block out external stressors.
“I can't talk to him about the accident; he just shuts down anytime I try.”
To suppress, block out, or reject (an idea or an aspect of one's personality or identity).
“She made a proposal to reorganize the department, but management shut her down.”
“And I learned a lot, and, um, some of it seemed a little bit too interesting? It felt a bit like I uncovered a part of myself that I've been purposefully just shutting down for as long as I can remember and never questioned why.”
To pass (another vehicle), especially quickly.
“I opened that throttle and shut him down.”
“Tach it up, tach it up / Buddy gonna shut you down”