if a discussion opens up, or if you open it up, it becomes more general or starts to include more subjects
Example: Breathing hard, listening to Titus open up the bar, curled around my lonely pillow, I remember her saying those fatal words.
if something opens up, or if you open it up, it opens from a folded position so that you can see its shape
Example: China is opening up to foreign investment.
same as open
Example: Donald wants to retire and open up a bookshop.
to create a difference between the people or groups involved in something
Example: Going freelance opens up all sorts of possibilities to you.
to create a new opportunity or possibility
Example: He opened up on the crowd with an automatic rifle.
to cut into someone’s body for medical reasons
Example: He opens up the shop every morning.
to make it easier to travel or do business in a country
Example: I think we need to open up the discussion and ask members of the audience for their opinions.
to open a locked door, container, or building
Example: It’s taken a few months, but Katy is finally starting to open up to me.
to start shooting a gun
Example: New cinemas are starting to open up.
to talk more about your personal feelings and experiences
Example: New markets are opening up every day.