openadjective
uk/ˈəʊ.pən/us/ˈoʊ.pən/open adjective (NOT CLOSED)
A2 not closed or fastened:
More examples
- His shirt was open to the waist revealing a very hairy chest.
- We could hear him cursing and swearing as he tried to get the door open.
- My jaw dropped open when she told me how old she was.
- I keep the bedroom door open in case the children call for me in the night.
- The thieves broke the safe open and stole the diamonds.
Thesaurus: synonyms and related words
Open and closed
- airtight
- ajar
- barred
- closed
- crack
- gaping
- hermetic
- hermetically sealed
- latch
- outspread
- patency
- sealed
- shut
- to
- undone
- watertight
- wide-eyed
open adjective (READY)
A1 [ after verb ] ready to be used or ready to provide a service:
More examples
- The museum is open daily except Monday(s).
- The Royal Apartments are open to the public.
- The hotel bar is open to non-residents.
- The west wing of the house is still lived in by Lord and Lady Carlton, while the rest of the house is open to the public.
- As both a teacher and parent, she had a vested interest in seeing the school remain open.
Thesaurus: synonyms and related words
Open and closed
- airtight
- ajar
- barred
- closed
- crack
- gaping
- hermetic
- hermetically sealed
- latch
- outspread
- patency
- sealed
- shut
- to
- undone
- watertight
- wide-eyed
open adjective (NOT ENCLOSED)
B1 not closed in or covered:
More examples
- The road goes through several miles of open countryside.
- The open road stretched out in front of us.
- The house was surrounded by open fields.
- The fishing boat made its way out of the harbour and into the open sea.
- The soldiers were marching across open country.
Thesaurus: synonyms and related words
Enclosing, surrounding and immersing
- beleaguer
- beleaguered
- beset
- border
- box sb/sth in
- dunk
- fence sth in
- fence sth off
- flooding
- gather
- gift-wrap
- gift-wrapped
- steep
- surround
- swallow
- wall sth off
- wound 1
- wrap
- wrap (sb) up
- wrap sth around sb/sth
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open adjective (COMPUTER)
If a computer document or program is open, it is ready to be read or used:
Thesaurus: synonyms and related words
Operating computers
- aliasing
- always-on
- black hat
- BMP
- caps lock (key)
- computerize
- cut
- enter
- format
- function
- hacker
- hash
- keyboarder
- punch
- roll (sth) over sth
- scroll bar
- title bar
- touchscreen
- uninstall
- zip
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open adjective (AVAILABLE)
C1 [ after verb ] available; not limited:
More examples
- The company's accounts are open to scrutiny.
- The current system is open to abuse.
- He laid himself open to ridicule.
- The success of the project is open to question.
- The publisher is open to book proposals from new authors.
Thesaurus: synonyms and related words
Available and accessible
- accessible
- at your command idiom
- availability
- available
- be there for sb idiom
- bookable
- come out
- hand
- nothing
- on hand idiom
- on stream idiom
- on/about your person idiom
- open (sth) up
- person
- ready
- ready-made
- release
- season
- vacant
- vacant possession
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open adjective (NOT SECRET)
C2 not secret:
C2 honest and not trying to keep things secret:
More examples
- I like her open and direct manner.
- The deal was completely open and above board.
- Despite a commitment to more open government, the public are still being kept in the dark about the inner machinations of the Cabinet.
- They showed open contempt for their new neighbours.
- The minister hasn't been entirely open about his business interests.
Thesaurus: synonyms and related words
Apparent and obvious
- apparent
- be (as) plain as the nose on your face idiom
- be (right) under your nose idiom
- be etched somewhere idiom
- be writ large idiom
- leap out at sb
- linear
- loud
- loud and clear idiom
- manifest
- manifestly
- marked
- publicly
- recognizable
- self-evident
- shine
- shine out
- shine through
- stare
- stark
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You can also find related words, phrases, and synonyms in the topics:
open adjective (NOT DECIDED)
not decided or certain:
Thesaurus: synonyms and related words
Uncertainty
- be neither fish nor fowl idiom
- circumstantial
- conflicted
- debatable
- definite maybe
- dispute
- joker
- joker in the pack idiom
- kind
- kind of idiom
- kinda
- knife edge
- razor
- tenuous
- there's no knowing idiom
- touch-and-go
- uncertain
- uncertainty
- unclear
- vague
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Idiom(s)
openverb
uk/ˈəʊ.pən/us/ˈoʊ.pən/open verb (BEGIN)
B2 [ I or T ] to (cause to) begin:
More examples
- The Chairperson opened the proceedings with a short speech.
- I've opened an account with a building society.
- The show will open with a firework display.
- The album opens with his most famous song.
- Let's open with a reminder of what we did last week.
Thesaurus: synonyms and related words
Starting and beginning
- be in the first flush of idiom
- become
- begin
- branch out
- break into sth
- export
- get down to business idiom
- ground
- incipient
- initiator
- instate
- introduce
- kick
- strike
- swing into action idiom
- touch sth off
- train
- trigger
- wade in
- weave
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open verb (NOT CLOSED)
A1 [ I or T ] to move something to a position that is not closed, or to make something change to a position that is not closed:
A2 [ T ] to remove or separate part of a container or parcel so that you can see or use what it contains:
More examples
- I can't open my bag - the zip has stuck.
- I just opened the drawer as usual and the handle came away in my hand.
- The customs officials made us go through the whole rigmarole of opening up our bags for inspection.
- We must open the channels of communication between the two countries.
- The door opens outwards.
Thesaurus: synonyms and related words
Unfastening and opening
- breaker
- let/set sth loose idiom
- loose
- loosen
- loosen your grip idiom
- open sb up
- pay (sth) out
- steam
- the earth/ground/floor opens idiom
- throw
- unbuckle
- uncap
- uncork
- undid
- unfold
- unpick
- unplug
- unroll
- unscrew
- untie
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open verb (READY)
A2 [ I or T ] If a shop or office opens at a particular time of day, it starts to do business at that time:
B2 [ T ] If someone, usually someone important, opens a building, event, etc., they officially say that it is ready to be used or to start operating:
More examples
- The box office opens at ten.
- The Queen will open the new visitors' centre.
- The opening of the superstore will sound the death knell for hundreds of small independent shops.
- The factory opened last November.
- The corner shop opens at five o'clock in the morning.
Thesaurus: synonyms and related words
Unfastening and opening
- breaker
- let/set sth loose idiom
- loose
- loosen
- loosen your grip idiom
- open sb up
- pay (sth) out
- steam
- the earth/ground/floor opens idiom
- throw
- unbuckle
- uncap
- uncork
- undid
- unfold
- unpick
- unplug
- unroll
- unscrew
- untie
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You can also find related words, phrases, and synonyms in the topics:
open verb (AVAILABLE)
[ T ] to make something available:
More examples
- The market has been opened up to private investors.
- By denying responsibility for the matter, the minister has opened himself up to criticism.
- Deregulation has opened the rail industry to competition.
- The chairman opened up the meeting to questions from the audience.
- Organizers have been urged to open the race up to international runners.
Thesaurus: synonyms and related words
Available and accessible
- accessible
- at your command idiom
- availability
- available
- be there for sb idiom
- bookable
- come out
- hand
- nothing
- on hand idiom
- on stream idiom
- on/about your person idiom
- open (sth) up
- person
- ready
- ready-made
- release
- season
- vacant
- vacant possession
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open verb (COMPUTER)
B1 [ T ] If you open a computer document or program, you make it ready to read or use:
Thesaurus: synonyms and related words
Operating computers
- aliasing
- always-on
- black hat
- BMP
- caps lock (key)
- computerize
- cut
- enter
- format
- function
- hacker
- hash
- keyboarder
- punch
- roll (sth) over sth
- scroll bar
- title bar
- touchscreen
- uninstall
- zip
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Idiom(s)
Phrasal verb(s)
opennoun [ S ]
uk/ˈəʊ.pən/us/ˈoʊ.pən/open noun [ S ] (NOT ENCLOSED)
somewhere outside, rather than in a building:
Thesaurus: synonyms and related words
From, out and outside
- al fresco
- breath
- door
- exogenous
- exterior
- external
- from
- open-air
- out
- out
- out and about idiom
- out of 2
- outdoor
- outdoors
- outer
- outward
- outwards
- outwith
- thence
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open noun [ S ] (NOT SECRET)
to tell people information that was secret:
Thesaurus: synonyms and related words
Honesty, openness & sincerity
- (as) man to man idiom
- above board
- artless
- be on the level idiom
- bona fide
- bone
- in all honesty/seriousness/truthfulness idiom
- in good faith idiom
- integrity
- joke
- joking apart/aside idiom
- let's face it idiom 1
- nail
- skinny
- squeaky-clean
- stainless
- straight arrow idiom
- straight up idiom
- straightforward
- transparent
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