open up

verb

opened up; opening up; opens up

transitive verb

1
: to make available or possible
The discovery opens up the possibility of new cures.
2
: to make plain or visible : disclose
3
: to open by cutting into

intransitive verb

1
: to become available or possible
The hostess will let us know when a table opens up.
2
: to spread out or come into view
The road opens up ahead.
3
: to commence firing
4
: to become communicative
tried to get the patient to open up

Examples of open up in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But in the front corner of the Chiefs’ locker room at Nissan Stadium, almost an interruption to the despair of late Sunday afternoon, third-string quarterback Chris Oladokun opened up his phone and scrolled through his texts. Sam McDowell December 21, Kansas City Star, 22 Dec. 2025 Whatever window of communication had opened up between us had closed again. Benjamin Markovits, The Atlantic, 21 Dec. 2025 Your world is ready to open up. Usa Today, USA Today, 21 Dec. 2025 That's my favorite thing, is opening up my windows and hearing the downpour. Da Lin, CBS News, 21 Dec. 2025 See All Example Sentences for open up

Word History

First Known Use

1582, in the meaning defined at transitive sense 1

Time Traveler
The first known use of open up was in 1582

Browse Nearby Words

Cite this Entry

“Open up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/open%20up. Accessed 22 Dec. 2025.

Kids Definition

open up

verb
1
: to make available
2
: to make visible or come into view
the road opens up ahead
3
: to begin firing (as with a weapon or with questions)
Last Updated: - Updated example sentences
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