1.
to be stressed out: to have a lot of stress
- I am stressed out these days.
- She is stressed out because she has too much work.
2.
CTO: Chief Technology Officer (a very senior position in any large company)
- She was named the new CTO of our company.
- The CTO of our company makes more than $10 million a year.
3.
to be a big deal: to be very important and significant
- This news is a big deal.
- The news that our CEO is retiring at the end of the year is a big deal.
