開ひらく

godan verb (-ku), intransitive verb, transitive verb

open; undo; unseal or unpack

Basic physical sense: open something closed, or for something to open out. Often used with things like books, packages, doors, windows, and lids; transitive and intransitive uses both exist.

• 教きょう科か書しょを三さん十じゅう二にページに開ひらいてください。

  Please open your textbook to page thirty-two.

• 彼かれは包つつみを開ひらいて中なかを確かく認にんした。

  He opened the package and checked what was inside.

godan verb (-ku), intransitive verb, transitive verb

bloom; unfold; spread out; flare

Used when petals, buds, fans, maps, or shapes open outward. Also covers the clothing/shape use where a skirt or hem flares out.

• 朝あさになると、庭にわのつぼみがゆっくり開ひらいた。

  In the morning, the buds in the garden slowly opened.

• 裾すそが外そと側がわに開ひらいたスカートを選えらんだ。

  She chose a skirt with a hem that flares outward.

godan verb (-ku), intransitive verb, transitive verb

open for business

Intransitive use for a shop, bank, office, or similar place beginning business for the day.

• 店みせがひらくまで、駅えき前まえで待まった。

  I waited in front of the station until the shop opened.

godan verb (-ku), intransitive verb, transitive verb

widen; become wide; be spaced apart

Used for gaps, intervals, differences, or body parts moving farther apart. Common patterns include 差が開く, 間隔が開く, and 足を開く.

• 先せん頭とうとの差さが少すこしずつ開ひらいてきた。

  The gap with the leader gradually widened.

• 足あしを肩かた幅はばに開ひらいて立たってください。

  Please stand with your feet shoulder-width apart.

godan verb (-ku), transitive verb

hold; host; open an event

Transitive use with meetings, parties, exhibitions, classes, press conferences, and similar organized events.

• 来らい週しゅう、臨りん時じの会かい議ぎを開ひらく。

  We will hold an extraordinary meeting next week.

godan verb (-ku), transitive verb

found; establish; open a new business; set up

Transitive use for starting or establishing something such as a shop, office, school, sect, dynasty, or organization.

• 彼かの女じょは去きょ年ねん、駅えき前まえに小ちいさな店みせを開ひらいた。

  Last year she opened a small shop in front of the station.

godan verb (-ku), transitive verb

open ports or borders

Used for making a port, border, country, market, or similar boundary accessible to outsiders.

• 政せい府ふは国こっ境きょうを外がい国こく人じん旅りょ行こう者しゃに開ひらいた。

  The government opened the border to foreign travelers.

godan verb (-ku), transitive verb

open an account

Transitive financial use, typically in the phrase 口座を開く. 開設する is a more formal alternative.

• 留りゅう学がく前まえに日本にほんの銀ぎん行こうで口こう座ざを開ひらいた。

  Before studying abroad, I opened an account at a Japanese bank.

godan verb (-ku), transitive verb

open up land or a route; clear; develop

Used for making new land, a road, a path, a market, or a field of activity usable. The spelling 拓く is especially associated with this 'open up/develop' sense.

See also: 拓く

• 彼かれらは山やまに新あたらしい道みちを開ひらいた。

  They opened up a new path through the mountain.

godan verb (-ku), transitive verb

open a file

Computing use for opening a file, folder, app window, link, or similar digital item.

• 添付てんぷファイルを開ひらく前まえに、送そう信しん者しゃを確かく認にんしてください。

  Before opening the attached file, check the sender.

godan verb (-ku), transitive verb

extract a root; reduce an equation

Technical mathematical use; it is uncommon in ordinary modern conversation and may be replaced by more explicit expressions such as 平方根を求める or 式を整理する.

• 古ふるい数すう学がくの説せつ明めいでは、「16を平へい方ほうに開ひらくと4になる」と言いうことがある。

  In older mathematical explanations, one may say, 'extracting the square root of 16 gives 4.'

• ここで「方ほう程てい式しきを開ひらく」とは、式しきを整せい理りして簡かん単たんな形かたちにするという意い味みだ。

  Here, 'opening the equation' means rearranging it into a simpler form.

godan verb (-ku), transitive verb

cut open a fish

Cooking use, especially 魚を開く: to split a fish open flat for drying, grilling, or preparation.

• アジを開ひらいて干ひ物ものにした。

  I cut open the horse mackerel and made it into dried fish.

godan verb (-ku), transitive verb

write kanji in kana; spell out in hiragana

Editorial and writing-related use: converting kanji into hiragana, often to make text easier to read or to follow a style guide.

• 小しょう学がく生せい向むけの記き事じでは、難むずかしい漢かん字じをひらがなに開ひらくことがある。

  In articles for elementary school students, difficult kanji are sometimes written out in hiragana.

godan verb (-ku), intransitive verb

open up into poor posture; slacken

Sports coaching term, especially in baseball, golf, and similar movements. 体が開く or 肩が開く means the body or shoulders open too early, weakening the form.

• 投とう球きゅうのときに肩かたが早はやく開ひらくと、球たまが外そとに流ながれやすい。

  If your shoulder opens too early when pitching, the ball tends to drift outside.

godan verb (-ku), intransitive verb

extend in Go

Only with reading ヒラく

Go term usually written ヒラく. It means to extend from a stone or position, especially along the side of the board.

See also: 開き

• 布ふ石せきで黒くろは右う辺へんにヒラいた。

  In the opening, Black extended on the right side.