B1 noun /kəˈnæl/

canal

運河

Meaning

an artificial waterway constructed for navigation, irrigation, or drainage

Example

The canal was built to help transport goods across the region.

運河は地域内で物資の輸送を助けるために建設されました。

B1 verb /siːk/

seek

求める

Meaning

to try to find or obtain something; to attempt or desire to achieve

Example

He decided to seek advice from his mentor.

彼はメンターからアドバイスを求めることに決めました。

B1 noun /ˈhɛdˌlaɪn/

headline

見出し

Meaning

The title of a newspaper article printed in large letters.

Example

The scandal made front-page headlines.

そのスキャンダルはフロントページの見出しになった。

B1 noun /kəmˈpænjən/

companion

仲間

Meaning

a person or animal you spend time with or travel with

Example

He was my companion during the long journey.

彼は長い旅の間、私の仲間でした。

B1 noun /ˈtʃɛərˌwʊmən/

chairwoman

女性議長

Meaning

a woman who presides over a meeting, committee, or organization; a female leader of a board or council

Example

She was elected chairwoman of the company after years of experience.

彼女は長年の経験の後、その会社の女性議長に選ばれた。

B1 adverb /ʌnˈfɔːrtʃənətli/

Unfortunately

残念ながら

Meaning

used to express regret or disappointment about something

Example

Unfortunately, the weather was bad for our picnic.

残念ながら、私たちのピクニックには天気が悪かった。

B1 adjective ˌɪn.dɪˈpen.dənt

independent

独立

Meaning

Not depending on another for livelihood or subsistence; free from outside control; not subject to another's authority.

Example

An independent institution ensures transparency in governance.

独立した機関は、ガバナンスの透明性を保証します。

B1 noun /sɛks/

sex

性別

Meaning

the biological distinction between male and female; sexual activity

Example

He was asked about his sex at the doctor's office.

彼は医者のオフィスで自分の性別について尋ねられました。

B1 noun /ˈhaʊzɪŋ/

housing

住宅

Meaning

buildings or structures where people live; accommodation

Example

The government is working to provide affordable housing for everyone.

政府はすべての人々に手頃な住宅を提供するために努力しています。

B1 verb /kənˈsuːm/

consume

食べる, 飲む, 消費する

Meaning

to eat or drink; to use up; to destroy completely

Example

We consume a lot of water during summer.

私たちは夏にたくさんの水を消費します。

B1 adjective /ˈtwɛntiəθ/

twentieth

二十番目

Meaning

coming after the nineteenth in order; being one of twenty equal parts.

Example

She was born on the twentieth of April.

彼女は四月二十日に生まれました。

B1 adjective /ˈmiː.nɪŋ.fəl/

Meaningful

意味のある; 目的を持った;

Meaning

having significance; purposeful; important

Example

She found meaningful work helping others.

彼女は他の人を助けることで意味のある仕事を見つけました。

B1 noun /ˈpæsɪŋ/

passing

通過, 死

Meaning

the act of moving past something or the end of someone's life

Example

The passing of the leader was a great loss for the nation.

リーダーの死は国にとって大きな損失でした。

B1 noun /ˈspiːʃiːz/

Species

種; タイプ

Meaning

a group of living organisms that can reproduce with each other; a type or kind

Example

The Amazon rainforest is home to thousands of animal species.

アマゾンの熱帯雨林は何千もの動物種の家です。

B1 adjective /ɪnˈkɝr.ɪ.dʒɪŋ/

Encouraging

励ましの; モチベーションを与える

Meaning

giving support or confidence; inspiring; motivating

Example

The teacher's encouraging words motivated the students.

先生の励ましの言葉は生徒たちを励ました。

B1 verb pres

press

押す. 圧力。

Meaning

Exert force on (someone or something), typically with one's finger or hand, in order to move them away from oneself.

Example

Press firmly to operate the machine.

マシンを操作するためにしっかり押してください。

B1 preposition /ˈvaɪə/ or /ˈviːə/

via

経由で

Meaning

through, by way of, or using a particular route or means

Example

She sent the documents via email.

彼女はメールを通じて書類を送った。

B1 noun /ˈlaɪtnɪŋ/

lightning

雷光

Meaning

a flash of light in the sky caused by electricity during a storm

Example

The lightning struck a tree near our house.

雷光が私たちの家の近くの木に当たった。

B1 adjective /ˌen.əˈdʒet.ɪk/

Energetic

エネルギッシュな; 活発な; エネルギーに満ちた

Meaning

having or showing great activity; vigorous; full of energy

Example

She is very energetic and loves outdoor activities.

彼女は非常にエネルギッシュで、アウトドア活動が大好きです。

B1 verb /ˌɪntəˈrʌpt/

interrupt

割り込む

Meaning

to stop someone from speaking or doing something by suddenly saying or doing something

Example

She tried not to interrupt while he was speaking.

彼女は彼が話している間、割り込まないようにした。

B1 adjective /ˈɛd.jʊ.keɪ.tɪd/

educated

教育を受けた

Meaning

Having received a good level of formal schooling or training; knowledgeable

Example

She is an educated woman who values lifelong learning.

彼女は教育を受けた女性で、生涯学習を重視しています。

B1 adjective /ˈfæsɪneɪtɪŋ/

Fascinating

魅力的

Meaning

extremely interesting; captivating; enchanting

Example

The documentary about ocean life was fascinating.

海の生命に関するドキュメンタリーは魅力的だった。

B1 noun pəˈten.ʃəl

potential

ポテンシャル

Meaning

Having or showing the capacity to become or develop into something in the future.

Example

The potential for innovation is immense.

イノベーションのポテンシャルは計り知れない。

B1 noun /eɪdz/

aids

エイズ病

Meaning

Acquired Immune Deficiency Syndrome, a disease of the immune system caused by HIV

Example

AIDS is a major global health concern.

エイズは世界的な健康問題です。

B1 adverb /əˈkeɪʒənəli/

Occasionally

時々; たまに;

Meaning

sometimes; from time to time; not regularly

Example

I occasionally visit my grandmother on weekends.

私は時々週末に祖母を訪ねます。

B1 adverb /əˈlaʊd/

Aloud

大声で

Meaning

in a voice that can be heard; not silently

Example

Please read the instructions aloud so everyone can hear.

指示を大声で読んで、皆が聞こえるようにしてください。

B1 adjective ˈkruː.ʃəl

crucial

重要な

Meaning

Decisive or critical, especially in the success or failure of something.

Example

Fault-tolerance is crucial for reliability.

フェイルオーバーは信頼性にとって重要です。

B1 adverb /ˈbraɪtli/

brightly

明るく

Meaning

in a way that gives off a lot of light; in a vivid, cheerful, or intelligent manner

Example

The stars shone brightly in the clear night sky.

澄んだ夜空に星が明るく輝いていた。

B1 noun /kənˈkluː.ʒən/

Conclusion

結論; 終了; 判断

Meaning

the end or finish of an event, process, or text; a judgment or decision reached by reasoning

Example

The conclusion of the research paper summarized all the important findings.

研究論文の結論は、すべての重要な発見を要約しました。

B1 noun, verb /stɒk/

stock

在庫

Meaning

a supply of goods kept for sale or use; to keep or fill with goods

Example

The shop stocks a wide variety of products.

その店はさまざまな製品を在庫しています。

B1 verb /ˈwɪspər/

whisper

ささやく

Meaning

to speak very softly using one's breath without vocal cords

Example

She whispered a secret in my ear.

彼女は私の耳元で秘密をささやいた。

B1 noun /ˈfɛloʊ/

fellow

仲間

Meaning

a person who shares a common situation, interest, or activity with another

Example

He is a fellow student in my class.

彼は私のクラスの仲間です。

B1 noun /ˈbɒksər/

boxer

ボクサー; ボクサーパンツ; ボクサー犬

Meaning

a person who fights in the sport of boxing; a type of short loose-fitting underwear; a breed of medium-to-large dog

Example

The boxer trained hard every morning before the championship match.

そのボクサーはチャンピオンシップの前に毎朝厳しく練習した。

B1 noun /plʌm/

Plum

プラム

Meaning

a small round fruit with smooth red or purple skin, sweet flesh, and a single large seed

Example

The purple plum was juicy and delicious.

その紫色のプラムはジューシーで美味しかった。

B1 verb /ˈɪndɪkeɪt/

indicate

示す

Meaning

to point out; to show or suggest; to be a sign of

Example

The red light indicates that you should stop.

赤い信号は停止すべきことを示しています。

B1 noun /ˈrɛntəl/

rental

レンタル

Meaning

an arrangement in which something is rented, or the amount paid for renting

Example

The car rental was more expensive than we expected.

レンタカーは予想より高かった。

B1 noun, verb /praɪz/

prize

賞

Meaning

something given as a reward for achievement; to value highly

Example

He won the first prize in the competition.

彼はコンペティションで一等賞を受賞した。

B1 noun /ˌek.spləˈneɪ.ʃən/

Explanation

説明; 明確化;

Meaning

a statement or account that makes something clear; clarification of meaning

Example

The teacher gave a detailed explanation of the complex mathematical concept.

教師は複雑な数学的概念の詳細な説明を行った。

B1 noun /rɪˈliːf/

Relief

安心; 安堵; 支援

Meaning

a feeling of comfort after worry or distress; assistance given to those in need

Example

She felt great relief when the exam was over.

試験が終わったとき、彼女は大きな安堵感を感じました。

B1 noun /kənˈviː.ni.əns/

Convenience

便利

Meaning

the state of being able to proceed with something without difficulty; a thing that contributes to an easy way of life

Example

The convenience of online shopping has changed how people buy products.

オンラインショッピングの便利さは、製品を購入する方法を変えました。

B1 adjective /ˈɡɪvən/

given

既定

Meaning

Specified or stated; already decided or certain.

Example

It is a given fact that hard work leads to success.

努力は成功に導くというのは既定の事実です。

B1 verb /əˈlɑːrm/

alarm

驚かせる

Meaning

to warn of danger; to frighten or disturb

Example

The loud noise alarmed the residents.

大きな音が住民を驚かせた。

B1 verb /ˈhaɪˌlaɪt/

highlight

強調する

Meaning

to emphasize or make something stand out

Example

The teacher highlighted the most important points in the text.

先生はテキストで最も重要な点をハイライトしました。

B1 noun ɪɡˌzæm.ɪˈneɪ.ʃənz

examinations

試験

Meaning

A detailed inspection or investigation; a formal test of a person's knowledge or proficiency.

Example

BPSC conducts rigorous examinations.

BPSCは厳格な試験を実施します。

B1 adjective /ˈsʌm.wʌt/

Somewhat

やや; 少し; ほどほど

Meaning

to some extent; rather; moderately

Example

The movie was somewhat interesting but not great.

その映画は少し面白かったが、すごくはなかった。

B1 noun /ˈkrɪtɪˌsɪzəm/

criticism

批判

Meaning

The expression of disapproval or judgment of the merits of something

Example

The new policy has faced a lot of criticism from the public.

新しい政策は、一般の人々から多くの批判を受けました。

B1 noun /dɪˈpɑː.tʃər/

Departure

出発

Meaning

the action of leaving, especially to start a journey; a deviation from an established course

Example

The departure of the train was delayed by thirty minutes due to technical issues.

列車の出発は技術的な問題で30分遅れました。

B1 noun /ˈmelədi/

Melody

メロディ; 音楽の旋律

Meaning

A sequence of single notes that is musically satisfying; a tune

Example

She hummed a beautiful melody while cooking dinner.

彼女は夕食を作りながら、美しいメロディを口ずさんでいました。

B1 noun /ˈskwɪr.əl/

Squirrel

リス

Meaning

a small agile tree-dwelling rodent with a long bushy tail

Example

The squirrel gathered nuts for winter.

リスは冬のために木の実を集めていました。

B1 adverb /ˈɔːfəli/

awfully

とても

Meaning

in a very great degree; extremely; in a way that is very bad or unpleasant

Example

I am awfully glad to see you again.

また会えてとても嬉しいです。

B1 noun /tʃɑːrm/

Charm

魅力; 魔法; 魅力的な力

Meaning

the power or quality of giving delight or arousing admiration; a magical spell or talisman

Example

Her natural charm and wit made her popular at social gatherings.

彼女の自然な魅力と機知は、社交的な集まりで彼女を人気者にした。

B1 noun /ˈtɪʃ.uː/

tissue

ティッシュ

Meaning

a piece of soft absorbent paper or fabric

Example

She used a tissue to wipe her nose.

彼女はティッシュで鼻を拭きました。

B1 noun ˈstrʌk.tʃər

structure

構造

Meaning

The arrangement of and relations between the parts or elements of something complex.

Example

The structure is designed for safety and functionality.

構造は安全性と機能性のために設計されています。

Unsafe

危険な; 危ない;

Meaning

involving or causing danger or risk; not protected from harm

Example

It is unsafe to walk alone in this neighborhood at night.

この地域では夜間に一人で歩くのは危険です。

B1 verb /dɪˈklaɪn/

decline

減少する

Meaning

To become smaller, fewer, or less; to decrease gradually.

Example

The unemployment rate continues to decline.

失業率は減少し続けています。

B1 adverb /ˈmiːn.waɪl/

Meanwhile

その間

Meaning

at the same time; during the same period

Example

She was cooking dinner, meanwhile he was setting the table.

彼女は夕食を作っていた、その間、彼はテーブルを整えていた。

B1 noun /wɪdθ/

Width

幅; 広がり

Meaning

the measurement or extent of something from side to side; breadth

Example

The width of the river is about 50 meters.

川の幅は約50メートルです。

B1 adjective /bɔɪld/

Boiled

ゆでた

Meaning

cooked in boiling water

Example

She served boiled eggs for breakfast.

彼女は朝食に茹で卵を出しました。

B1 verb /haɪər/

hire

雇う

Meaning

to employ someone for wages; to rent or engage services

Example

The company will hire new employees next month.

その会社は来月新しい従業員を雇う予定です。

B1 noun /pəˈpaɪə/

Papaya

パパイヤ

Meaning

a large orange tropical fruit with sweet orange flesh and black seeds

Example

Papaya is rich in vitamins and very good for health.

パパイヤはビタミンが豊富で、健康に非常に良いです。

B1 noun /ˈsɜr.fɪs/

Surface

表面; 上層

Meaning

the outside part or uppermost layer of something

Example

The submarine emerged to the surface of the ocean.

潜水艦は海面に浮かび上がった。

B1 noun /ˈkaʊn.səl/

council

評議会

Meaning

an assembly of people chosen or elected to make decisions or advise on matters

Example

The city council voted to improve public transportation.

市議会は公共交通の改善のために投票しました。

B1 verb /dɪˈfaɪn/

define

定義する

Meaning

to explain the meaning of a word, phrase, or concept clearly

Example

The teacher asked the student to define the word 'democracy'.

先生は生徒に『民主主義』という言葉を定義するように頼んだ。

B1 adjective /əˈbiː.di.ənt/

Obedient

従順な

Meaning

willing to comply with orders or instructions; submissive

Example

The obedient student always follows the teacher's instructions.

従順な生徒はいつも先生の指示に従う。

B1 verb /dɪsˈtrɪbjuːt/

distribute

配布する

Meaning

to give out or spread something among several people or places

Example

The teacher will distribute the test papers.

先生は試験の用紙を配布します。

B1 noun /ˈsæl.ər.i/

Salary

給料

Meaning

a fixed regular payment, typically paid on a monthly basis

Example

She receives a good salary for her work as a teacher.

彼女は教師としての仕事に対して良い給料を受け取っています。

B1 noun /twiːt/

Tweet

さえずり

Meaning

a short high-pitched sound made by a small bird; a post on Twitter

Example

I heard the sweet tweet of a sparrow this morning.

今朝、スズメの甘いツイートを聞きました。

B1 adverb /ˈfɔːtʃənətli/

fortunately

幸いにも

Meaning

by good luck; luckily

Example

Fortunately, no one was injured in the accident.

幸いにも、事故で誰も怪我をしませんでした。

B1 adverb /ɪˈnɪʃəli/

initially

最初に

Meaning

At the beginning; at first.

Example

Initially, he refused the offer but later accepted it.

最初に、彼はその提案を断ったが、後で受け入れた。

B1 noun /ˈreɪn.boʊ/

Rainbow

虹

Meaning

an arch of colors formed in the sky by sunlight shining through rain

Example

After the storm, a beautiful rainbow appeared in the sky.

嵐の後、空に美しい虹が現れました。

B1 noun /trəˈdɪʃ.ən/

Tradition

伝統

Meaning

the transmission of customs or beliefs from generation to generation; a long-established custom or belief

Example

It's a family tradition to gather for dinner every Sunday evening.

日曜日の夜に家族全員でディナーを共にするのは、我が家の伝統です。

B1 adjective /ˈɡɔːr.dʒəs/

Gorgeous

非常に美しい; 魅力的; 視覚的に印象的

Meaning

extremely beautiful; attractive; visually stunning

Example

The bride looked absolutely gorgeous.

花嫁は絶対に美しく見えました。

B1 noun roʊps

ropes

ロープ

Meaning

A length of thick strong cord made by twisting together strands of hemp, sisal, nylon, or similar material.

Example

The ropes were tied securely to lift the heavy load.

ロープは重い荷物を持ち上げるためにしっかりと結ばれていました。

B1 noun /ˈtaɪpoʊ/

typo

タイプミス

Meaning

a mistake made in typing

Example

The report was full of typos.

レポートはタイプミスだらけだった。

B1 noun /ˈɡɑːr.lɪk/

Garlic

にんにく

Meaning

a strong-smelling pungent-tasting bulb, used as a flavoring in cooking and in herbal medicine

Example

The recipe calls for three cloves of fresh garlic to enhance the flavor.

風味を引き立てるために、レシピには新鮮なにんにくを三片使います。

B1 verb /ˈveri/

vary

変わる

Meaning

to change or differ; to make different

Example

The weather conditions vary throughout the day.

天気の状況は一日中変動します。

B1 verb /ˈwɪsəl/

whistle

口笛を吹く

Meaning

to make a high-pitched sound by blowing air through lips or teeth

Example

He likes to whistle while working.

彼は仕事をしながら口笛を吹くのが好きです。

B1 verb /ɪmˈplɔɪ/

employ

雇う

Meaning

to hire someone to do a job; to use something effectively

Example

The company plans to employ more engineers next year.

その会社は来年、もっと多くのエンジニアを雇う予定です。

B1 noun /ˈtiː.pɒt/

Tea-pot

ティーポット

Meaning

a container with a lid, handle, and spout for brewing and serving tea

Example

She poured hot water into the tea-pot to make tea.

彼女はお茶を淹れるためにティーポットに熱いお湯を注いだ。

B1 verb /əˈdɒpt/

adopt

養子を迎える

Meaning

To take something as your own, such as a child, idea, or method.

Example

They decided to adopt a child from the orphanage.

彼らは孤児院から子供を養子にすることに決めました。

B1 noun /ˈbed ʃiːt/

Bed sheet

ベッドシーツ

Meaning

a large rectangular piece of cloth used as bedding to lie on or under

Example

The clean white bed sheet felt soft against her skin.

清潔な白いベッドシーツは彼女の肌に柔らかく感じました。

B1 noun /əˈfek.ʃən/

Affection

愛情; 好意

Meaning

a feeling of liking or caring for someone or something

Example

She has deep affection for her grandmother.

彼女は祖母に深い愛情を持っています。

B1 verb /səˈspɛkt/

suspect

疑う

Meaning

to believe that someone has done something wrong; to doubt or mistrust

Example

I suspect he is lying about his whereabouts.

彼が居場所について嘘をついていると思います。

B1 noun /ɑːrmz/

Arms

武器

Meaning

weapons and ammunition; firearms

Example

The soldiers carried their arms into battle.

兵士たちは戦闘に武器を持ち込んだ。

B1 noun /hel/

Hell

地獄; 苦痛な状態; 極めて不快な経験

Meaning

a place regarded in various religions as a spiritual realm of evil and suffering; an extremely unpleasant experience

Example

Working in the factory during summer was absolute hell due to the extreme heat.

夏に工場で働くことは、極端な暑さのためにまさに地獄のようだった。

B1 adverb /ðʌs/

thus

このように

Meaning

as a result or consequence of something previously stated

Example

He was late, thus he missed the meeting.

彼は遅れたので、このように会議を欠席しました。

B1 verb /dɪɡ/

dig

掘る

Meaning

to break up and move earth with a tool or machine, or with hands, paws, etc.

Example

They decided to dig a hole for the new tree.

彼らは新しい木のために穴を掘ることを決めました。

B1 adjective /kəmˈbaɪnd/

combined

結合された

Meaning

formed by bringing together separate parts or elements

Example

The combined effort of the team led to success.

チームの共同の努力は成功をもたらしました。

B1 noun /ˈkɒliːɡ/

colleague

同僚

Meaning

a person with whom one works, especially in a profession or business

Example

She invited her colleagues to the office party.

彼女はオフィスパーティーに同僚を招待しました。

B1 noun /ˈempaɪər/

empire

帝国

Meaning

a group of countries or regions controlled by one ruler or government

Example

The Roman Empire lasted for centuries.

ローマ帝国は何世代にもわたって続きました。

B1 preposition /θruːˈaʊt/

throughout

通して

Meaning

in every part of a place or during the whole time of an event

Example

She worked throughout the night.

彼女は一晩中働き続けた。

B1 noun /ˈrɛzɪdəns/

residence

レジデンス

Meaning

a place where someone lives; a home or dwelling

Example

He recently moved to a new residence near the city center.

彼は最近、市内中心部近くの新しいレジデンスに引っ越しました。

B1 noun /ˈædʒɪktɪv/

adjective

形容詞

Meaning

a word that describes or modifies a noun by giving more information about its quality, quantity, or state

Example

The adjective in the sentence adds more detail to the noun.

形容詞は名詞に詳しい情報を加えます。

B1 adjective /ˌʌnɪmˈpɔːrtənt/

unimportant

重要でない

Meaning

not having much value, significance, or influence

Example

The detail seemed unimportant compared to the main issue.

その詳細は主要な問題と比べて重要でないように思えた。

B1 adjective /ˌoʊld ˈfæʃənd/

old-fashioned

昔風の

Meaning

not modern; belonging to an earlier time

Example

He still wears an old-fashioned hat.

彼は今でも昔風の帽子をかぶっています。

B1 verb /ˈpɜːrtʃəs/

purchase

購入

Meaning

to buy something; to acquire by paying money

Example

I need to purchase groceries for the week.

今週のために食料品を購入する必要があります。

B1 noun /ˌɒp.əˈtjuː.nə.ti/

opportunity

チャンス

Meaning

A favorable chance or set of circumstances that makes it possible to do something.

Example

She seized the opportunity to study abroad.

彼女は海外で勉強するチャンスをつかんだ。

B1 verb /pɑːrtɪsɪˈpeɪtɪŋ/

participating

参加する

Meaning

Taking part in an activity or event.

Example

He is participating in the Antarctic expedition.

彼は南極遠征に参加しています。

B1 noun/adjective /ˈmæksɪməm/

maximum

最大

Meaning

the greatest or highest amount, value, or degree possible

Example

She scored the maximum marks in the exam.

彼女は試験で最大の点数を取った。

B1 noun /ˈhʌŋɡər/

hunger

飢餓

Meaning

the feeling of discomfort caused by lack of food

Example

The child cried out of hunger.

その子供は飢えで泣いていました。

B1 adjective /ˈɪnəsənt/

Innocent

無実の; 純粋な; 無害な

Meaning

free from guilt or sin; pure; harmless; naive

Example

The innocent child had no idea that her parents were planning a surprise party.

その無実の子供は、両親がサプライズパーティーを計画していることを知りませんでした。

B1 noun /ˈfaɪn.dɪŋ/

finding

発見、調査後に得られた結論または結果

Meaning

a discovery, conclusion, or result reached after investigation

Example

The scientist published her findings in a leading journal.

科学者は彼女の発見を主要なジャーナルに発表しました。

B1 noun /ˈkætəɡɔːri/

textbook

教科書

Meaning

a book used for studying a subject in school or college

Example

She bought a new biology textbook for her class.

彼女はクラスのために新しい生物学の教科書を買いました。

B1 adjective /ˌʌnbɪˈliːvəbəl/

Unbelievable

信じられない

Meaning

impossible to believe; extremely surprising or remarkable

Example

The magician's performance was absolutely unbelievable.

魔法使いのパフォーマンスは絶対に信じられなかった。

B1 adverb /ˈpraʊdli/

proudly

誇らしげに

Meaning

in a way that shows pride or satisfaction; with a sense of honor or achievement

Example

She proudly displayed her achievements to her family.

彼女は誇らしげに家族に自分の成果を見せた。

B1 noun ˈtʃeə.pɜː.sən

chairperson

議長

Meaning

A person who is in charge of a meeting or organization; the presiding officer of a committee, board, or organization.

Example

The chairperson ensures procedural integrity.

議長は手続きの整合性を確保します。