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open-plan
open-pollinated
open prison
open punctuation
open repo
open sandwich
open season
open secret
open sentence
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open up

open up


verb 
Definition:
 
1. intransitive verb unfold: to become unclosed, unfold or expand, or offer a broader and freer view to a viewer
Suddenly the valley opened up before us.

2. transitive verb make opening in something: to make an opening in something, especially in order to get access

3. transitive verb remove covering or obstruction from something: to remove anything that closes or covers something, or that blocks, obstructs, or restricts it

4. transitive and intransitive verb make something accessible: to make something more accessible or available to a wider range of people, or become more accessible
The Internet has opened up a whole new world of information.

5. transitive and intransitive verb 
Same as  openv (sense 6)

A new video store is opening up next week.

6. transitive and intransitive verb open business for day: to unlock something, especially a store or business, and make it ready for the day

7. intransitive verb speak freely: to speak honestly, especially about personal feelings or experiences
She opens up when she gets to know you.

8. intransitive verb tell what you know: to confess to a crime or give information about a crime under coercion ( informal )

9. intransitive verb start shooting weapon: to start firing or cause a gun or other weapon to start firing

10. transitive and intransitive verb become or make something more exciting: to become more free-flowing and more interesting or exciting, or cause something to become so
After the first goal the game opened up.

11. intransitive verb make vehicle go faster: to cause a motor vehicle to accelerate, or travel at an accelerated speed ( informal )

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