open

英語（米国） (en-US) 英語（イギリス） (en-GB)

IPA（発音記号）

/ˈəʊ.pən/

形容詞

比較不可 通常 身体部位 比較可能 地域限定 数式 集合 前置詞句 属格 前置詞句 電気工学 書簡体 音節 限定用法 離綴複合語

not closed or shut

このボタンはなに？

The library is open to everyone on weekends.

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意味（1）

Able to be accessed.

意味（2）

Able to have something pass through or along it.

Turn left after the second open door.

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意味（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.

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意味（4）

Not physically drawn together, closed, folded or contracted; extended.

an open hand; an open flower

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意味（5）

(not comparable) Actively conducting or prepared to conduct business.

Banks are not open on bank holidays.

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意味（6）

(comparable) Receptive.

I am open to new ideas.

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意味（7）

(not comparable) Public

He published an open letter to the governor on a full page of the New York Times.

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意味（8）

(not comparable) Candid, ingenuous, not subtle in character.

The man is an open book.

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意味（9）

(now regional) Mild (of the weather); free from frost or snow.

He desires me to tell you that the present open weather induces him to accept Mr Vernon's invitation to prolong his stay in Sussex that they may have some hunting together.

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意味（10）

(mathematics, logic, of a formula) Having a free variable.

意味（11）

(mathematics, topology, of a set) Which is part of a predefined collection of subsets of X, that defines a topological space on X.

意味（12）

(graph theory, of a walk) Whose first and last vertices are different.

意味（13）

(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.

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意味（14）

(engineering, gas and liquid flow, of valve or damper) To be in a position allowing fluid to flow.

意味（15）

(electricity, of a switch or circuit breaker) To be in a position preventing electricity from flowing.

意味（16）

(business) Not fulfilled.

I've got open orders for as many containers of red durum as you can get me.

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意味（17）

Not settled or adjusted; not decided or determined; not closed or withdrawn from consideration.

an open question

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意味（18）

(music, stringed instruments) Of a note, played without pressing the string against the fingerboard.

意味（19）

(music) Of a note, played without closing any finger-hole, key or valve.

意味（20）

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

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意味（21）

(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.

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意味（22）

(phonetics) Uttered with a relatively wide opening of the articulating organs; said of vowels.

Supposing somebody sees you, with all those flowers too? Supposing somebody writes him a letter? Ooooh! (a pure round open Tamil O.)

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意味（23）

(phonetics) Uttered, as a consonant, with the oral passage simply narrowed without closure.

意味（24）

(phonetics, of a syllable) That ends in a vowel; not having a coda.

意味（25）

(computing, education) Made public, usable with a free licence and without proprietary components.

意味（26）

(medicine) Resulting from an incision, puncture or any other process by which the skin no longer protects an internal part of the body.

意味（27）

(computing, used before "code") Source code of a computer program that is not within the text of a macro being generated.

意味（28）

(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.

more open （ 比較級 ）

most open （ 最上級 ）