Definition: make available
Usage: This opens up new possibilities
Definition: become available
Usage: an opportunity opened up
Main entry: open up
Definition: talk freely and without inhibition
Definition: cause to open or to become open
Usage: Mary opened the car door
Definition: become open
Usage: The door opened
Definition: open up an area or prepare a way
Usage: She pioneered a graduate program for women students
Definition: start to operate or function or cause to start operating or functioning
Usage: open a business