open up

verb

1. cause to open or to become open"Mary opened the car door"
2. become available"an opportunity opened up"
3. make available"This opens up new possibilities"
4. open up an area or prepare a way"She pioneered a graduate program for women students"
5. start to operate or function or cause to start operating or functioning"open a business"
6. become open"The door opened"
7. talk freely and without inhibition