open

open - English

Pronunciation

  • (Received Pronunciation) enPR: ō'pən, IPA: /ˈəʊ.pən/
  • (US) enPR: ō'pən, IPA: /ˈoʊ.pən/

Adjective

open (comparative more open, superlative most open)

  1. (usually not comparable) Not closed.
    1. Able to be accessed (physically).
    2. Able to have something pass through or along it.
      • Turn left after the second open door.
    3. (of a body part) not covered, showing what is inside
      • It was as if his body had gone to sleep standing up and with his eyes open.
  2. Not physically drawn together, closed, folded or contracted; extended.
    • an open hand; an open flower
  3. (not comparable) Actively conducting or prepared to conduct business.
    • Banks are not open on bank holidays.
  4. (comparable) Receptive.
    • I am open to new ideas.
  5. (not comparable) Public
    • He published an open letter to the governor on a full page of the New York Times.
  6. (not comparable) With open access, of open science, or both.
    • hopes for all aspects of the project being open rather than paywalled
  7. (not comparable) Candid, ingenuous, not subtle in character.
    • The man is an open book.
  8. (now regional) Mild (of the weather); free from frost or snow.
  9. (mathematics, logic, of a formula) Having a free variable.
  10. (mathematics, topology, of a set) Which is part of a predefined collection of subsets of X {\displaystyle X} , that defines a topological space on X {\displaystyle X} .
  11. (graph theory, of a walk) Whose first and last vertices are different.
  12. (computing, not comparable, of a file, document, etc.) In current use; mapped to part of memory.
    • I couldn't save my changes because another user had the same file open.
  13. (engineering, gas and liquid flow, of valve or damper) To be in a position allowing fluid to flow.
  14. (electricity, of a switch or circuit breaker) To be in a position preventing electricity from flowing.
  15. (business) Not fulfilled.
    • I've got open orders for as many containers of red durum as you can get me.
  16. Not settled or adjusted; not decided or determined; not closed or withdrawn from consideration.
    • an open question
    • to keep an offer or opportunity open
    • your account will remain open until we receive final settlement.
  17. (music, stringed instruments) Of a note, played without pressing the string against the fingerboard.
  18. (music) Of a note, played without closing any finger-hole, key or valve.
  19. Not of a quality to prevent communication, as by closing waterways, blocking roads, etc.; hence, not frosty or inclement; mild; used of the weather or the climate.
    • an open winter
  20. (law, of correspondence) Written or sent with the intention that it may made public or referred to at any trial, rather than by way of confidential private negotiation for a settlement.
    • You will observe that this is an open letter and we reserve the right to mention it to the judge should the matter come to trial.
  21. (phonetics) Uttered with a relatively wide opening of the articulating organs; said of vowels.
  22. (phonetics) Uttered, as a consonant, with the oral passage simply narrowed without closure.
  23. (phonetics, of a syllable) That ends in a vowel; not having a coda.
  24. (computing, education) Made public, usable with a free licence and without proprietary components.
  25. (medicine) Resulting from an incision, puncture or any other process by which the skin no longer protects an internal part of the body.
  26. (computing, used before "code") Source code of a computer program that is not within the text of a macro being generated.
  27. (of a multi-word compound) Having component words separated by spaces, as opposed to being joined together or hyphenated; for example, time slot as opposed to timeslot or time-slot.

Synonyms

Antonyms

Hyponyms

Hyponyms of open (adjective)

Derived terms

Terms derived from open (adjective)

Translations


Verb

open (third-person singular simple present opens, present participle opening, simple past and past participle opened)

  1. (transitive) To make something accessible or allow for passage by moving from a shut position.
    • Turn the doorknob to open the door.
  2. (transitive) To make (an open space, etc.) by clearing away an obstacle or obstacles, in order to allow for passage, access, or visibility.
    • He opened a path through the undergrowth.
  3. (transitive, intransitive, engineering, gas and liquid flow, of valve or damper) To move to a position allowing fluid to flow.
  4. (transitive, intransitive, electricity, of a switch, fuse or circuit breaker) To move to a position preventing electricity from flowing.
  5. (Manglish, Philippines) To turn on; to switch on.
    • Open your webcam.Turn on your webcam.
    • Open the fan please.Please switch on the fan.
    • Open the lights please.Please turn on the lights.
  6. (transitive) To bring up, broach.
    • I don't want to open that subject.
  7. (transitive) To enter upon, begin.
    • to open a discussion
    • to open fire upon an enemy
    • to open trade, or correspondence
    • to open a case in court, or a meeting
  8. (transitive) To spread; to expand into an open or loose position.
    • to open a closed fist
    • to open matted cotton by separating the fibres
    • to open a map, book, or scroll
  9. (transitive) To make accessible to customers or clients.
    • I will open the shop an hour early tomorrow.
  10. (transitive) To start (a campaign).
    • Vermont will open elk hunting season next week.
  11. (intransitive) To become open.
    • The door opened all by itself.
  12. (intransitive) To begin conducting business.
    • The shop opens at 9:00.
  13. (intransitive, cricket) To begin a side's innings as one of the first two batsmen.
  14. (intransitive, poker) To bet before any other player has in a particular betting round in a game of poker.
    • After the first two players fold, Julie opens for $5.
  15. (transitive, intransitive, poker) To reveal one's hand.
    • Jeff opens his hand revealing a straight flush.
  16. (computing, transitive, intransitive, of a file, document, etc.) To load into memory for viewing or editing.
  17. (transitive, nursing) To make (a bed) ready for a patient by folding back the bedcovers.
  18. (obsolete) To disclose; to reveal; to interpret; to explain.

Usage notes

  • Due to the near-opposite meanings relating to fluid flow and electrical components, these usages are deprecated in safety-critical instructions, with the words to on or to off preferred, so instead of Open valve A; open switch B" use Turn valve A to ON; turn switch B to OFF.

Conjugation

infinitive (to) open
present tense past tense
1st-person singular open opened
2nd-person singular open, openest opened, openedst
3rd-person singular opens, openeth opened
plural open
subjunctive open opened
imperative open
participles opening opened

Archaic or obsolete.

Synonyms

  • (to make accessible): unseal
  • (to bring up): raise
  • (to enter upon): start; see also begin
  • (to disclose): bare; see also reveal

Antonyms

Hyponyms

  • (to make accessible): crack (open a bit)

Derived terms

Translations

  • Bulgarian: разчиствам (bg) (razčistvam)
  • Hungarian: nyit (hu)
  • Maori: manaha, mānahanaha, marake, areare, whakaareare

Noun

open (plural opens)

  1. (with the) Open or unobstructed space; an exposed location.
    • I can't believe you left the lawnmower out in the open when you knew it was going to rain this afternoon!
    • Wary of hunters, the fleeing deer kept well out of the open, dodging instead from thicket to thicket.
  2. (with the) Public knowledge or scrutiny; full view.
    • We have got to bring this company's corrupt business practices into the open.
  3. (electronics) A defect in an electrical circuit preventing current from flowing.
    • The electrician found the open in the circuit after a few minutes of testing.
  4. A sports event in which anybody can compete.
    • the Australian Open
  5. The act of something being opened, such as an e-mail message.

Derived terms

Translations

  • Finnish: aukea (fi)
  • French: plein air (fr)
  • Latvian: atklāta telpa
  • Maori: tarawaha, kau(w)hanga, āputa, ahoaho
  • Basque: ireki, open (eu)
  • Catalan: open (ca) m
  • Finnish: avoimet (fi)
  • French: omnium sportif
  • Latvian: atklātais čempionāts m
  • Persian: اوپن (fa)
  • Portuguese: aberto (pt) m
  • Spanish: open (es) m
  • Swahili: fungua (sw)
  • Zazaki: abyaye, aberde

Anagrams

open - Afrikaans

Pronunciation

  • IPA: /ˈʊə̯.pən/

Verb

open (present open, present participle openende, past participle geopen)

  1. (transitive) to open

open - Catalan

Noun

open m (plural open or òpens)

  1. (sports) open

open - Dutch

Pronunciation

  • IPA: /ˈoː.pə(n)/
  • Hyphenation: open

Adjective

open (comparative opener, superlative openst)

  1. open, not closed
  2. open for business
  3. open, receptive

Inflection

Inflection of open
uninflected open
inflected open
comparative opener

Antonyms

Derived terms

Descendants


Verb

open

  1. first-person singular present indicative of openen
  2. imperative of openen

Anagrams

open - Finnish

Noun

open

  1. genitive singular of ope

open - French

Pronunciation

  • IPA: /ɔ.pɛn/, /ɔ.pœn/

Noun

open m (plural opens)

  1. open; open tournament

open - Middle Dutch

Adjective

ōpen

  1. open, not closed
  2. open, accessible
  3. freely accessible, public

Inflection

This adjective needs an inflection-table template.

Derived terms

Descendants

  • Dutch: open
  • Limburgish: aop

open - Middle English

Alternative forms

Adjective

open (comparative more open, superlative most open)

  1. open

Descendants

open - Norwegian Nynorsk

Pronunciation

  • IPA: /²oːpən/

Adjective

open (neuter ope or opent, definite singular and plural opne, comparative opnare, indefinite superlative opnast, definite superlative opnaste)

  1. open
    • Kvifor er døra open?
      • Why is the door open?

Usage notes

A common, but unofficial, feminine form is opa (“ei opa dør”, compare lita and inga). Up until 2012, opi was an optional official form, but was removed along with other forms like liti and ingi.

open - Old English

Pronunciation

  • IPA: /ˈo.pen/

Adjective

open

  1. open

Declension

Singular Masculine Feminine Neuter
Nominative open open open
Accusative openne opene open
Genitive openes openre openes
Dative openum openre openum
Instrumental opene openre opene
Plural Masculine Feminine Neuter
Nominative opene opena, opene open
Accusative opene opena, opene open
Genitive openra openra openra
Dative openum openum openum
Instrumental openum openum openum
Singular Masculine Feminine Neuter
Nominative opena opene opene
Accusative openan openan opene
Genitive openan openan openan
Dative openan openan openan
Instrumental openan openan openan
Plural Masculine Feminine Neuter
Nominative openan openan openan
Accusative openan openan openan
Genitive openra, openena openra, openena openra, openena
Dative openum openum openum
Instrumental openum openum openum

Derived terms

Descendants

open - Plautdietsch

Adjective

open

  1. open

open - Romanian

Noun

open n (plural openuri)

  1. open (sports event)

Declension

singular plural
indefinite articulation definite articulation indefinite articulation definite articulation
nominative/accusative (un) open openul (niște) openuri openurile
genitive/dative (unui) open openului (unor) openuri openurilor
vocative openule openurilor

open - Spanish

Pronunciation

  • IPA: /ˈopen/ [ˈo.pẽn]
  • Syllabification: o‧pen

Noun

open m (plural opens or open)

  1. (sports) open
Meaning and Definition of open
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