open up (
http://definr.com/open up)
v 1: cause to open or to become open; "Mary opened the car door"
[syn:
open] [ant:
close]
2: become available; "an opportunity opened up" [syn:
open]
3: make available, as of an opportunity; "This opens up new
possibilities" [syn:
open]
4: open up an area or prepare a way; "She pioneered a graduate
program for women students" [syn:
pioneer]
5: start to operate or function or cause to start operating or
functioning; "open a business" [syn:
open] [ant:
close]
6: become open; "The door opened" [syn:
open] [ant:
close]
7: talk freely and without inhibition [ant:
close up]