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Meaning of “open” - Learner’s Dictionary

open

adjective     /ˈəʊpən/
NOT CLOSED
A2 not closed or fastened: an open door/window Someone had left the gate wide open. Is there a bottle of wine already open? I threw all the doors open (= opened them quickly). A magazine was lying open on her lap. The kids were so tired they could hardly keep their eyes open.Open and closed
DOING BUSINESS
A1 A shop or business is open during the time it is available for business or serving customers: Most shops are open on Sundays now.Open and closed
COMPUTERS
If a computer document or program is open, it is ready to be read or used.Operating computers
WITHOUT BUILDINGS [always before noun]
B1 An open area of land has no buildings on it or near it: large open spaces open fieldsAreas of land in generalSpace - general words
NOT COVERED [always before noun]
without a roof or cover: an open courtyardRoofs and parts of roofs
FOR EVERYONE
If a place or event is open, everyone can go to it or become involved in it: an open debate Are the gardens open to the public?Available and accessiblePresent
HONEST
An open person is honest and does not hide their feelings: He's very open and friendly.Honesty, openness and sincerity
NOT HIDDEN [always before noun]
Open feelings, usually negative ones, are not hidden: open hostility/rivalry Honesty, openness and sincerity
NOT DECIDED
If a decision or question is open, it has not yet been decided: We don't have to make a firm arrangement now. Let's leave it open.UncertaintyHesitatingAchievable
have/keep an open mind
B2 to wait until you know all the facts before you form an opinion about something or judge someone: The cause of the fire is still unclear and we are keeping an open mind.UncertaintyHesitatingAchievable
open to discussion/suggestions, etc
willing to consider a discussion/suggestions, etc: This is only a proposal. I'm open to suggestions.UncertaintyHesitatingAchievable
open to abuse/criticism, etc
likely to be abused/criticized, etc: The system is wide open to abuse. →  See also with your eyes open Possible and probable
(Definition of open adjective from the Cambridge Learner’s Dictionary © Cambridge University Press)
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