公こう開かい

こ

う

か

い

公開する · noun or participle which takes 'suru'

Form	Positive	Negative
Dictionary	公こう開かいする	公こう開かいしない
Polite	公こう開かいします	公こう開かいしません
Past polite	公こう開かいしました	公こう開かいしませんでした
Past	公こう開かいした	公こう開かいしなかった
Te-form	公こう開かいして	公こう開かいしないで
Desire	公こう開かいしたい	公こう開かいしたくない
Potential	公こう開かいできる	公こう開かいできない
Passive	公こう開かいされる	公こう開かいされない
Causative	公こう開かいさせる	公こう開かいさせない
Causative passive	公こう開かいさせられる	公こう開かいさせられない
Volitional	公こう開かいしよう
Polite volitional	公こう開かいしましょう
Imperative	公こう開かいしろ	公こう開かいするな
Conditional	公こう開かいすれば	公こう開かいしなければ
Tara conditional	公こう開かいしたら	公こう開かいしなかったら

Meanings

noun, noun or participle which takes 'suru', transitive verb

open to the public; release; disclose; exhibit

Broadly used for making something publicly accessible: events, facilities, information, films, data, etc. Often used as a noun or with する.

新あたらしい映えい画がが来らい月げつ公こう開かいされる。
The new movie will be released next month.
政せい府ふは調ちょう査さ結けっ果かを公こう開かいした。
The government disclosed the investigation results.
この庭てい園えんは一いっ般ぱんに公こう開かいされています。
This garden is open to the public.

See all 471 example sentences ›

Usage patterns

〈物もの〉が公こう開かいされるfor something (a film, data, etc.) to be released or made public
その映えい画がは来らい月げつ公こう開かいされる。
That movie will be released next month.
〈物もの〉を一いっ般ぱんに公こう開かいするto open something up to the general public
この美び術じゅつ館かんは今年ことしから一いっ般ぱんに公こう開かいされる。
This museum will be open to the general public starting this year.
〈事こと〉を公こう開かいするto disclose information or facts
会かい社しゃは決けっ算さん情じょう報ほうを公こう開かいした。
The company disclosed its financial results.
〈場ば所しょ〉を公こう開かいするto open a place or facility to visitors
城しろの内ない部ぶを特とく別べつに公こう開かいする。
The interior of the castle is opened to the public on a special basis.

Expressions

公こう開かい中ちゅうnow available; currently released; now showing
近きん日じつ公こう開かいcoming soon; soon to be released

Kanji

公public, prince, official
開open, unfold, unseal

Related words· 12

発はっ表ぴょうN4
発表 is for announcing or presenting results, plans, or ideas, while 公開 emphasizes making something accessible for anyone to see or use.
公こう表ひょうN2
公表 is used specifically for officially publicizing information (like statistics or decisions), while 公開 covers a wider range including events, media, and facilities.
開かい示じ
開示 is a formal, often legal or financial term for disclosing information, while 公開 is broader and includes making places, events, or media accessible.
開かい放ほうN2
開放 focuses on physically opening a place or facility for free access, while 公開 more broadly covers releasing anything—information, media, events—to the public.

Show 8 more

初はつ公こう開かいN2
公開 means the general act of making something public, while 初公開 specifically refers to the very first time it is shown or released.
上じょう映えいN1
公開 means the general public release or opening of something (a film, information, event), while 上映 specifically refers to the screening of a film in a theater or venue.
晒さらすN1
公開 is a neutral, formal word for making something public or open, whereas 晒す often implies unwanted or harsh exposure.
リリース
公開 stresses making something publicly viewable or accessible, especially films or documents, whereas リリース has more of a product-launch feel.
パブリック
公開 means 'to release/open to the public' and is used for information, films, or events becoming public, whereas パブリック is an adjective describing something as inherently public or shared.
解かい禁きん
公開 simply means making something public, whereas 解禁 implies the content was deliberately withheld until a set release time.
披ひ露ろうN1
公開 means opening something up to the public at large, whereas 披露 is about showing or demonstrating something to a particular audience, often with pride or ceremony.
お披ひ露ろ目め
公開 means simply making something open to the public, while お披露目 implies a special, often festive occasion marking the first showing.

Opposites· 10

非ひ公こう開かいN3
非公開 means kept private or closed to the public, the direct opposite of 公開, which means made open or accessible to everyone.
極ごく秘ひN1
公開 means to make something open or public, the direct opposite of keeping it 極秘 (top secret).
シークレット
公開 means 'made public/open', the opposite of something kept シークレット (secret).

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隠いん蔽ぺい
公開 means to make something public or disclose it, the direct opposite of 隠蔽's act of concealing information.
隠かくし
隠し refers to keeping something hidden, whereas 公開 means making it publicly known, so the two describe opposite treatments of information.
機き密みつ
公開 means making information public, the direct opposite of 機密, which means keeping information classified.
秘ひ匿とく
公開 means to make something public, the direct opposite of 秘匿, which means to keep something hidden.
秘ひ密みつN3
公開 means to make something open or public, the direct opposite of keeping it 秘密 (secret).
密みつN2
密 (secret) describes information kept hidden, while 公開 describes information made openly available to the public.
内うち々うち
公開 means to make something open to the public, contrasting with 内々, which means handling something privately without disclosure.

Don't confuse with

後こう悔かいN2
後悔 (regret) is pronounced identically to 公開 (making public) but has a completely unrelated meaning, so context is essential to tell them apart.
公こう募ぼN1
公開 means simply making something open or public, whereas 公募 specifically means publicly soliciting applications or proposals.
公こう海かい
公開 (making something public, e.g. a release or disclosure) shares the same reading こうかい with 公海 but has nothing to do with the sea.
放ほう映えいN1
公開 means making something publicly available or releasing it (e.g. a movie in theaters), not specifically airing it on TV like 放映.

Counted with

回かいN4
公開 as an event (a screening, release, or exhibition) is typically counted with 回 for the number of times it occurs, e.g. 第1回公開.

Word family· 37

非ひ公こう開かいN3
private; non-public; closed
初はつ公こう開かいN2
debut; first public showing; opening
公こう開かい文ぶん
public text; publicly released document
公こう開かい日ひ
release date; publication date; opening day
公こう開かい株かぶ
publicly traded stock; listed stock

Show 6 more

公こう開かい状じょう
open letter
公こう開かい鍵かぎ
public key
未み公こう開かい
unpublished; unreleased; undisclosed; unlisted
一いっ般ぱん公こう開かい
open to the public; public opening · read permission: anybody
公こう開かいかぎ
public key
公こう開かいの席せき
in public; public occasion; public setting

See all 37 in Explore →

Etymology

Compound of 公 (public) and 開 (open). The word is a modern Sino-Japanese coinage, widely used from the Meiji period onward.