0 to open the lock on the door of a building: --
The caretaker opens up the school every morning at seven.
1 to improve a situation by making it less limited: --
The government has announced plans to open up access to higher education.
2 to show something that was hidden or not previously known: --
The debate could open up sharp differences between the countries.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
open (sth) up