Dictionary

open up

verb

Definition of OPEN UP

transitive verb
1
:  to make available
2
:  to make plain or visible :  disclose
3
:  to open by cutting into
intransitive verb
1
:  to spread out or come into view <the road opens up ahead>
2
:  to commence firing
3
:  to become communicative <tried to get the patient to open up>

First Known Use of OPEN UP

1582

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April 25, 2015
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