What Does The idiom 180 Degrees Mean?

The idiom "180 degrees" means a complete reversal or change in direction, opinion, or behavior. It's based on the idea that rotating something 180 degrees makes it face the opposite way.

Here are some examples:

* "After the accident, his opinion on safety did a complete 180."

* "She was initially hesitant about the project, but after hearing the presentation, she did a 180."

* "The company's marketing strategy did a 180 when they realized their target audience had changed."

Essentially, it signifies a dramatic shift or turnaround.