something that people think is important, usually because it is exciting or it makes them worried
Example:
- So what's the big deal about the movie?
- He makes a big deal about the recent rise in gender equality.
- The former champion made a big deal of the fact he has been boxing for 27 years.
- This leak is a big deal for people who reuse passwords on other websites.
an important business agreement
Example:
- Do these big deals make sense for shareholders?