open

/'oupən/
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open

The store is open for business.

Definition

  1. Adjective:

    • Not closed, fastened, or sealed: Allowing access, passage, or view; not shut or blocked.
    • Available for business or service: Ready to receive customers or visitors.
    • Not covered or enclosed: Exposed to the air or elements; lacking a roof or lid.
    • Public and not secret: Conducted or visible to all; not hidden or restricted.
    • Receptive and willing: Ready to consider new ideas or arguments; not prejudiced.
    • Not finally decided or settled: Still subject to discussion, change, or further thought.
    • Spread out or unfolded: Not closed or folded together.

  2. Verb:

    • To move something so it is no longer closed: To cause a door, window, lid, etc., to change from a closed to an open position.
    • To become open: For something to change from a closed to an open state.
    • To start or begin: To initiate an event, activity, or operation.
    • To make accessible or available: To remove restrictions or barriers to entry, use, or participation.
    • To reveal or disclose: To make something known or visible.

  3. Noun:

    • A clear or unobstructed space: An area of land, sky, or water that is not enclosed or built upon.
    • A public or unconcealed state: A condition where information or events are known to all.
    • A competition accessible to all: A tournament where participation is not restricted to a specific group.
Examples of Usage

  • Adjective:

    • Please leave the window open. (Not closed)
    • The store is open from 9 AM to 6 PM. (Available for business)
    • We slept under the open sky. (Not covered)
    • The meeting was an open discussion. (Public, not secret)
    • She has an open mind about the proposal. (Receptive)
    • That question is still open for debate. (Not finally decided)

  • Verb:

    • Could you open the door? (Cause to be not closed)
    • The door opened slowly. (Became not closed)
    • The mayor will open the new library tomorrow. (Start, begin)
    • The new policy opens the program to more applicants. (Makes accessible)
    • The investigation opened old wounds. (Revealed, disclosed)

  • Noun:

    • The cattle grazed on the open. (Clear, unobstructed space)
    • The scandal is now out in the open. (Public knowledge)
    • He won his first major open. (Tournament)
Advanced Usage

  • "to be open to something": To be willing to consider or accept something; to be vulnerable to something.

    • I am open to suggestions. (Willing to consider)
    • The system is open to abuse. (Vulnerable to)

  • "with open arms": With great warmth, enthusiasm, or welcome.

    • They welcomed the refugees with open arms.

  • "in the open": Outside; in the outdoors; or in a state of being publicly known.

    • The children love to play in the open. (Outdoors)
    • Their feud is now in the open. (Publicly known)
Variants and Related Words
  • Opener (n): A tool for opening containers; the first event or item in a series.
    • a bottle opener
  • Opening (n/adj): An act of becoming open; a gap or hole; a beginning; a job vacancy. As an adjective, it means first or initial.
    • an opening in the fence (n)
    • the opening ceremony (adj)
  • Openly (adv): Without concealment; publicly.
    • He openly criticized the plan.
  • Openness (n): The quality of being open, receptive, or transparent.
Synonyms
  • Adjective: Unclosed, accessible, available, exposed, public, receptive, undecided.
  • Verb: Unlock, unfasten, uncover, start, launch, inaugurate, disclose.
  • Noun: Outdoors, clear, public.
Related Phrasal Verbs
  • Open up:
    • To become more communicative or emotionally accessible.
      • It took time for him to open up about his feelings.
    • To make something available or accessible.
      • The new highway opened up the region to trade.
    • To unlock and open a door.
      • Open up! It's the police!
  • Open onto/into: To lead directly to or provide access to another space.
    • The kitchen opens onto a small garden.
Related Idioms
  • Keep one's eyes open: To be watchful or alert.
    • Keep your eyes open for any suspicious activity.
  • Open secret: Something that is supposedly secret but is actually widely known.
    • Their relationship is an open secret in the office.
  • Open-and-shut case: A legal case or matter that is easily decided because the facts are very clear.
    • The evidence made it an open-and-shut case.
  • Open the door to: To create an opportunity for something.
    • The treaty opened the door to increased cooperation.
open

The store is open for business.

Adjective
  1. ready for business
    • the stores are open
  2. openly straightforward and direct without reserve or secretiveness
    • his candid eyes
    • an open and trusting nature
    • a heart-to-heart talk
  3. affording free passage or view
    • a clear view
    • a clear path to victory
    • open waters
    • the open countryside
  4. possibly accepting or permitting
    • a passage capable of misinterpretation
    • open to interpretation
    • an issue open to question
    • the time is fixed by the director and players and therefore subject to much variation
  5. not requiring union membership
    • an open shop employs nonunion workers
  6. open and observable; not secret or hidden
    • an overt lie
    • overt hostility
    • overt intelligence gathering
    • open ballots
  7. ready or willing to receive favorably
    • receptive to the proposals
  8. without undue constriction as from e.g. tenseness or inhibition
    • the clarity and resonance of an open tone
    • her natural and open response
  9. not sealed or having been unsealed
    • the letter was already open
    • the opened package lay on the table
  10. not brought to a conclusion; subject to further thought
    • an open question
    • our position on this bill is still undecided
    • our lawsuit is still undetermined
  11. (set theory) of an interval that contains neither of its endpoints
  12. having no protecting cover or enclosure
    • an open boat
    • an open fire
    • open sports cars
  13. (of textures) full of small openings or gaps
    • an open texture
    • a loose weave
  14. not defended or capable of being defended
    • an open city
    • open to attack
  15. accessible to all
    • open season
    • an open economy
  16. not having been filled
    • the job is still open
  17. used of mouth or eyes
    • keep your eyes open
    • his mouth slightly opened
  18. open to or in view of all
    • an open protest
    • an open letter to the editor
  19. with no protection or shield
    • the exposed northeast frontier
    • open to the weather
    • an open wound
  20. affording free passage or access
    • open drains
    • the road is open to traffic
    • open ranks
  21. affording unobstructed entrance and exit; not shut or closed
    • an open door
    • they left the door open
Verb
  1. display the contents of a file or start an application as on a computer
  2. afford access to
    • the door opens to the patio
    • The French doors give onto a terrace
  3. make the opening move
    • Kasparov opened with a standard opening
  4. have an opening or passage or outlet
    • The bedrooms open into the hall
  5. become available
    • an opportunity opened up
  6. make available
    • This opens up new possibilities
  7. spread out or open from a closed or folded state
    • open the map
    • spread your arms
  8. begin or set in action, of meetings, speeches, recitals, etc.
    • He opened the meeting with a long speech
  9. become open
    • The door opened
  10. start to operate or function or cause to start operating or functioning
    • open a business
  11. cause to open or to become open
    • Mary opened the car door
Noun
  1. information that has become public
    • all the reports were out in the open
    • the facts had been brought to the surface
  2. a tournament in which both professionals and amateurs may play
  3. where the air is unconfined
    • he wanted to get outdoors a little
    • the concert was held in the open air
    • camping in the open
  4. a clear or unobstructed space or expanse of land or water
    • finally broke out of the forest into the open

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