adjective
Not closed, so people or things can pass through, or you can see inside.
The window is open.
Please leave the door open.
Common phrases & grammar
open door · open window · open book · wide open
[something] is open
leave [something] open
American English
How to pronounce open
adjective · verbA1Very common word
OHpn
/ˈoʊ.pn̩/
2 syllables · Stress the first syllable.
Not closed, so people or things can pass through, or you can see inside.
Practice out loudMeanings & examples
verb
To move or remove a door, lid, window, or similar thing so there is a way in or you can see inside.
She opened the box carefully.
The doors open at nine.
Common phrases & grammar
open a door · open a window · open a box · open an umbrella
open [something]
[something] opens
adjective
Available for people to enter, visit, or use at a particular time.
Is the pharmacy open today?
The museum is open from ten to six.
Common phrases & grammar
open to the public · open every day · open late · open for business
[place] is open
[place] is open from [time] to [time]
verb
To begin a business, event, meeting, discussion, or period.
They opened a new restaurant downtown.
The chair opened the meeting with a short speech.
Common phrases & grammar
open a business · open a meeting · open an exhibition · open negotiations
open [something]
open [something] with [something]
Useful expressions
to start talking honestly about personal feelings or experiences
He opened up about his childhood.
to be willing to consider an idea or possibility
I'm open to a different plan.
outside, not inside or hidden
The children played in the open.