Night-jesmine
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
C2 noun /naɪt ˈdʒæz.mɪn/

Night-jesmine

夜香木
Meaning
a fragrant flowering tree that blooms at night with small white flowers
Example
The night-jasmine tree blooms only after sunset with its tiny white flowers.
夜香木の木は日没後に小さな白い花を咲かせます。
A2 adverb /ˈnaɪsli/

nicely

上手に
Meaning
in a pleasant, kind, or satisfactory manner; carefully and appropriately
Example
She explained the problem nicely so everyone could understand.
彼女はみんなが理解できるように上手に説明した。
C1 noun ˈnɛktər

Nectar

Meaning
A sweet liquid produced by flowers that serves as food for butterflies.
Example
Butterflies drink nectar from flowers.
蝶々は花からネクターを飲みます。
C2 verb /ˈnɪɡəl/

niggle

Meaning
to cause slight but persistent annoyance, discomfort, or worry
Example
A small doubt niggled at her mind.
C2 noun /ˈnoʊmənˌkleɪtʃər/

nomenclature

命名法
Meaning
A system of names or terms used in a particular science, art, or field.
Example
The chemical nomenclature can be difficult for beginners to understand.
化学的命名法は初心者には理解するのが難しい場合があります。
B2 adjective /ˈnoʊ.bəl/

Noble

高貴な
Meaning
having high moral qualities; honorable; generous; of aristocratic birth
Example
His noble actions helped many people in need.
彼の高貴な行いは困っている多くの人々を助けた。
C1 noun /njʊəˈrəʊ.sɪs/

neurosis

神経症
Meaning
A relatively mild mental illness that is not caused by organic disease, involving symptoms of stress.
Example
His neurosis made social interactions difficult.
彼の神経症は社会的な相互作用を困難にした。
B2 verb /nɪˈɡoʊ.ʃi.eɪt/

negotiate

交渉する
Meaning
To discuss something formally in order to reach an agreement.
Example
They negotiated a fair deal with the supplier.
彼らはサプライヤーと公平な取引を交渉した。
B1 adverb /ˌnesəˈserəli/

Necessarily

必然的に; 必ずしも;
Meaning
as a necessary result; inevitably; by logical consequence
Example
Rich people are not necessarily happy.
裕福な人々は必ずしも幸せではありません。
B2 adjective, verb /ˈnoʊtɪd/

noted

著名
Meaning
well known or famous; written down or observed
Example
He is a noted author in the field of history.
彼は歴史分野で著名な作家です。
C2 noun /ˈnɛtl̩/

nettle

触れると痛みを引き起こす植物
Meaning
a plant with stinging hairs that cause irritation when touched
Example
He accidentally brushed against the nettle and felt a sharp sting.
彼は不注意でイラクサに触れて鋭い痛みを感じた。
A1 noun /naɪn/

nine

Meaning
the number that is one more than eight
Example
She has nine books in her collection.
彼女はコレクションに9冊の本を持っています。
C1 noun /ˈnep.ə.tɪz.əm/

Nepotism

縁故主義
Meaning
the practice of favoring relatives or friends in business or politics
Example
The company was accused of nepotism in its hiring practices.
その会社は採用活動においてネポティズムを行っていると非難された。
C2 noun /ˌnɛɡlɪˈʒeɪ/

negligee

軽いシルクの寝間着
Meaning
A woman's light dressing gown, often made of thin or silky material.
Example
She wore a silk negligee before going to bed.
彼女は寝る前にシルクのネグリジェを着ていました。
C2 adjective /ˈnjuː.mər.ə.bəl/

Numerable

数えられる; 計算可能な
Meaning
capable of being counted; countable
Example
The stars in the sky are not numerable.
空の星は数えられません。
C1 noun /ˈnɑːrsɪsɪst/

narcissist

ナルシシスト
Meaning
A person who has an excessive interest in or admiration of themselves.
Example
Everyone avoided him because he was a narcissist.
みんな彼を避けていた、なぜなら彼はナルシシストだったから。
A2 noun /ˈnɛtˌwɜrk/

network

ネットワーク
Meaning
A system of interconnected people, things, or computers.
Example
She built a strong professional network.
彼女は強力なプロフェッショナルネットワークを作り上げた。
C2 noun /nɪt/

nit

シラミの卵
Meaning
The egg or young form of a louse or other parasitic insect.
Example
The teacher noticed nits in the child’s hair.
先生は子供の髪の毛にシラミの卵を見つけました。
B2 adjective /naɪˈiːv/

naive

無邪気
Meaning
Having a lack of experience or sophistication; overly innocent or trusting.
Example
She was naive to believe the scammer’s story.
彼女は詐欺師の話を信じるには無邪気すぎた。
A1 adverb /nɪər/

Near

近い
Meaning
close in space or time; almost
Example
The school is very near to my house.
学校は私の家の近くにあります。
B2 adverb /ˈneɪmli/

Namely

すなわち; 特に;
Meaning
that is to say; specifically; to be precise
Example
Three cities, namely Paris, London, and Rome, were visited.
三つの都市、すなわちパリ、ロンドン、ローマが訪問されました。
B2 noun /ˈnek.taɪ/

Necktie

ネクタイ
Meaning
a strip of cloth worn around the neck under a shirt collar and tied in front
Example
He adjusted his necktie before the important meeting.
彼は重要な会議の前にネクタイを調整した。
A2 adverb /ˈnoʊwɛr/

Nowhere

どこにも
Meaning
not anywhere; in no place
Example
I searched everywhere but the keys were nowhere to be found.
私はあらゆる場所を探しましたが、鍵はどこにも見つかりませんでした。
B2 verb /ˈnoʊtɪfaɪ/

notify

通知する
Meaning
to inform someone officially about something
Example
The manager will notify the staff about the schedule change.
マネージャーはスタッフにスケジュールの変更について通知します。
A1 adverb /naʊ/

now

Meaning
at the present moment or time
Example
I am studying now.
私は今勉強しています。
A2 noun /nek/

Neck

Meaning
the part of the body connecting the head to the shoulders
Example
She wore a beautiful necklace around her neck.
彼女は首に美しいネックレスをしていた。
B1 adjective /ˈneɪtɪv/

native

ネイティブ
Meaning
Belonging to a person by birth; originating in a particular place.
Example
He is a native speaker of Bengali.
彼はベンガル語のネイティブスピーカーです。
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

貨幣学の
Meaning
relating to the study or collection of coins, currency, and medals
Example
He has a numismatic collection of rare coins from around the world.
彼は世界中からの珍しいコインの収集を持っています。
C2 noun /ˈnɪn.i/

Ninny

バカ
Meaning
a silly or foolish person; someone who lacks common sense
Example
Don't be such a ninny, use your brain!
そんなバカなことをするな、頭を使え!
C2 noun /ˈnaɪəlɪst/

nihilist

ニヒリスト
Meaning
A person who rejects all religious and moral principles, often believing that life is meaningless.
Example
He was called a nihilist for rejecting all social norms.
彼はすべての社会的規範を拒否したため、ニヒリストと呼ばれました。
C2 noun /ˈnɑːstrəm/

nostrum

効果のない薬
Meaning
a medicine or remedy, especially one that is not considered effective; a questionable solution
Example
The politician’s plan was dismissed as a mere nostrum for a complex problem.
政治家の計画は、複雑な問題に対する単なる効果のない薬として退けられました。
A2 conjunction /nɔːr/

nor

またはない
Meaning
used to introduce a negative clause after a negative statement
Example
He didn't call, nor did he send a message.
彼は電話をかけなかったし、メッセージも送らなかった。
B2 adjective /ˈneɪvəl/

naval

海軍の
Meaning
relating to a country's navy or military ships
Example
The country invested heavily in naval defense.
その国は海軍防衛に多額の投資をしました。
B1 noun /ˌnæʃəˈnæləti/

nationality

国籍
Meaning
The status of belonging to a particular nation, either by birth or naturalization.
Example
Her nationality is Canadian, though she was born in France.
彼女の国籍はカナダのもので、フランスで生まれました。
C2 noun /nɑnˈen.tə.ti/

Nonentity

重要でない人物; 存在しないもの
Meaning
a person of no importance or influence; something that does not exist
Example
He felt like a nonentity in the large corporation.
彼は大企業でノンエンティティのように感じていました。
A2 noun /ˈnoʊtbʊk/

notebook

Meaning
a small book with blank or ruled pages for writing notes; also a portable computer
Example
She opened her notebook to jot down some ideas.
C1 noun /niːʃ/

Niche

市場のニッチ、専門分野、ターゲット市場
Meaning
A specialized segment of the market for a particular kind of product or service.
Example
Finding the right niche is key to a successful business.
適切なニッチを見つけることが、成功するビジネスの鍵です。
A1 adjective /nɛkst/

next

Meaning
immediately following in time, order, or place
Example
The next train leaves at 9:00 AM.
次の電車は午前9時に出発します。
C2 adjective /ˈnɛðər/

nether

下の
Meaning
situated down or below; lower
Example
They explored the nether regions of the cave.
彼らは洞窟の下の地域を探索した。
A2 noun /ˈnæpkɪn/

napkin

ナプキン
Meaning
a piece of cloth or paper used to wipe the mouth and hands while eating
Example
She placed a napkin on her lap before eating.
彼女は食事の前に膝の上にナプキンを置きました。
A2 adjective /ˈnɔː.məl/

Normal

通常; 一般的; 基準に合った; 健康
Meaning
usual; typical; conforming to a standard; healthy
Example
It's normal to feel nervous before an important exam.
重要な試験の前に緊張するのは普通です。
B2 noun /ˈnæp.kɪn/

Nap Kin

ナプキン
Meaning
a piece of cloth or paper used for wiping the mouth and hands while eating
Example
She placed the napkin on her lap before starting dinner.
彼女は夕食を始める前に、膝の上にナプキンを置きました。
A2 adjective /ˈnætʃərəl/

natural

自然な
Meaning
existing in or derived from nature; not made or caused by humankind
Example
She prefers to use natural ingredients in her cooking.
彼女は料理に自然な食材を使うのが好きです。
C1 adjective /ˈneɪzl/

nasal

鼻音の
Meaning
Relating to the nose; a sound produced through the nose.
Example
He spoke with a nasal voice due to his cold.
風邪で彼は鼻声で話した。
C1 noun ˈnuːkliəs

nucleus

原子核
Meaning
The central core of an atom containing protons and neutrons.
Example
The nucleus consists of protons.
原子核は陽子で構成されています。
B2 adjective /ˌnɒnˈprɒfɪt/

nonprofit

非営利団体
Meaning
an organization that does not aim to make a profit, often serving a social or charitable purpose.
Example
She works for a nonprofit organization that helps children.
彼女は子供たちを助ける非営利団体で働いています。
B2 noun ˈnɒv.əl.ti

novelty

新規性
Meaning
The quality of being new, original, or unusual; a new or unfamiliar thing or experience.
Example
The novelty of the invention attracted investors.
発明の新規性が投資家を引き付けました。
A1 adverb /nɒt/

not

いいえ
Meaning
used to make a word or phrase negative
Example
I do not like spicy food.
私は辛い食べ物が好きではありません。
C2 noun /ˈnes.lɪŋ/

Nestling

ヒナ
Meaning
a young bird that has not yet left its nest
Example
The mother bird fed the hungry nestling with worms.
母鳥は空腹のヒナに虫を与えました。
A2 noun /ˈnoʊ.tɪs/

Notice

通知
Meaning
attention to something; a written or printed announcement
Example
The notice on the board announced the school closure.
掲示板の通知が学校の閉鎖を発表しました。
C1 adjective /ˈneɡ.lɪ.dʒənt/

Negligent

不注意な
Meaning
failing to take proper care; careless; showing lack of attention
Example
The negligent driver caused a serious accident.
不注意な運転手が重大な事故を引き起こした。
C2 noun /nɛˈkroʊsɪs/

necrosis

壊死
Meaning
the death of body tissue due to disease, injury, or lack of blood supply
Example
The doctor explained that the patient’s wound showed signs of necrosis.
医師は、患者の傷が壊死の兆候を示していると説明しました。
C1 adjective /ˈnæv.ɪ.ɡə.bəl/

Navigable

航行可能
Meaning
suitable for ships or boats to travel on; able to be navigated
Example
The river is navigable for small boats during the rainy season.
その川は雨季に小さなボートが通行可能です。
A1 verb /neɪm/

name

名付ける
Meaning
to give a title or designation to someone or something
Example
They decided to name their baby Sarah.
彼らは赤ちゃんにサラという名前を付けることに決めました。
A2 adjective /ˈnɜː.vəs/

Nervous

神経質な, 緊張した
Meaning
feeling anxious or worried; relating to the nerves; easily agitated
Example
She felt nervous before her job interview.
彼女は面接の前に緊張していた。
A1 adverb /ˈnɛvər/

never

決して
Meaning
at no time in the past or future; not ever
Example
I have never seen such a beautiful sunset.
私はこんなに美しい夕日を決して見たことがありません。
C1 noun /naɪˈiːvteɪ/

naivete

Meaning
The quality of being naive; lack of experience, wisdom, or judgment.
Example
His naivete made him an easy target for manipulation.
C2 adjective /ˈnɪɡərdli/

niggardly

ケチ
Meaning
unwilling to spend or give; stingy or miserly
Example
He was too niggardly to leave a decent tip.
彼はまともなチップを置くにはあまりにケチだった。
B2 noun /næˈreɪʃən/

narration

ナレーション
Meaning
The act of telling a story or describing events in detail.
Example
The movie’s narration was done by a famous actor.
映画のナレーションは有名な俳優によって行われました。
C1 adjective /ˈnɔːrmətɪv/

normative

規範的
Meaning
relating to rules, standards, or norms that govern behavior or beliefs
Example
The study focused on the normative aspects of cultural behavior.
その研究は文化的な行動の規範的側面に焦点を当てました。
A2 noun /ˈnefjuː/

nephew

Meaning
the son of one’s brother or sister
Example
My nephew is studying at the university.
私の甥は大学で勉強しています。
B1 noun /ˈnɑn.sens/

Nonsense

ナンセンス
Meaning
words or language that have no meaning; foolish or unacceptable behavior
Example
Stop talking nonsense and be serious!
ナンセンスなことを言うのはやめて、真剣になりなさい!
A2 noun /niːs/

niece

Meaning
the daughter of one's brother or sister
Example
My niece is studying at the university this year.
私の姪は今年大学で勉強しています。
B2 adjective /ˈnoʊtɪsəbl/

noticeable

顕著な
Meaning
Easily seen, observed, or recognized.
Example
There was a noticeable improvement in her performance.
彼女のパフォーマンスには顕著な改善がありました。
C2 adjective /ˌnɒnpəˈreɪl/

nonpareil

比類のない
Meaning
Having no equal; unrivaled or matchless.
Example
Her beauty was considered nonpareil in the region.
彼女の美しさはその地域で比類のないものと考えられていた。
C1 noun /ˈnɔː.zi.ə/

Nausea

吐き気
Meaning
a feeling of sickness with an inclination to vomit
Example
The motion of the boat caused severe nausea.
ボートの動きがひどいナウジアを引き起こしました。
B2 adverb /ˌnɛvəðəˈlɛs/

nevertheless

Meaning
in spite of that; however
Example
He was tired; nevertheless, he kept working.
A1 adjective /naɪs/

Nice

素晴らしい; 良い; 魅力的な
Meaning
pleasant; agreeable; satisfactory; good; attractive
Example
She wore a nice dress to the party.
彼女はパーティーに素敵なドレスを着て行きました。
A2 adjective /ˈnɔɪ.zi/

Noisy

騒々しい
Meaning
making a lot of loud or unpleasant sound; clamorous
Example
The noisy construction work outside made it difficult to concentrate.
外の騒々しい建設作業で集中するのが難しかった。
C1 noun /ˈniːdəlwɜːrk/

needlework

刺繍, 手芸
Meaning
The craft of sewing, embroidery, or knitting done with a needle.
Example
Her grandmother taught her the art of needlework.
彼女の祖母は彼女にニードルワークの技術を教えました。
C1 adjective /ˈnɔːʃəs/

nauseous

吐き気を感じる
Meaning
feeling like you are about to vomit; causing a feeling of sickness
Example
The smell of rotten food made her feel nauseous.
腐った食べ物の匂いが彼女に吐き気を感じさせた。
A2 pronoun /ˈnoʊˌbɑːdi/

nobody

誰もいない
Meaning
no person; not anyone
Example
Nobody came to the party.
誰もパーティに来なかった。
C1 verb /ˈnjuːtrəlaɪz/

neutralize

無力化する
Meaning
to make something ineffective or harmless
Example
The medicine helped neutralize the poison in his system.
その薬は彼の体内の毒を無効にするのを助けました。
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

非戦闘員
Meaning
a person not engaged in fighting during a war, such as civilians or medical staff
Example
The Red Cross workers were treated as non-combatants in the conflict.
赤十字のスタッフは紛争で非戦闘員として扱われました。
C1 noun ˌnɒn.kəʊˌɒp.ərˈeɪ.ʃən

non-cooperation

非協力
Meaning
The practice of refusing to cooperate, especially as a form of protest.
Example
The non-cooperation movement gained momentum.
非協力運動は勢いを得た。
C1 noun /ˈnɛm.ə.sɪs/

nemesis

敵 / ライバル
Meaning
A long-standing rival or an inescapable agent of downfall.
Example
For years, he considered his colleague to be his nemesis.
何年もの間、彼は同僚を自分の敵だと思っていた。
C2 noun /ˌɛn.biː.esˈpiː/

nbsp

ノンブレイキングスペース
Meaning
a non-breaking space character in HTML used to prevent an automatic line break at its position
Example
Use   in HTML to add a space that won't break into a new line.
HTMLで改行しないスペースを追加するために を使用します。
A2 adverb /ˈnɪərbaɪ/

Near-by

近く; 近所
Meaning
close to; not far away; in the neighborhood
Example
There is a grocery store nearby.
近くに食料品店があります。
C2 adjective /ˈnjuːbaɪl/

nubile

未婚女性
Meaning
of a young woman, sexually mature and suitable for marriage
Example
The village was celebrating the festival with its nubile maidens dancing.
村はその未婚女性たちが踊る祭りを祝っていました。
A2 adjective ˈnɛɡ.ə.tɪv

negative

ネガティブ
Meaning
Not desirable or optimistic; harmful or unpleasant.
Example
She had a negative attitude about the upcoming project.
彼女は今後のプロジェクトに対してネガティブな態度を持っていた。
B2 adjective /nuːd/

nude

ヌード
Meaning
Wearing no clothes; naked.
Example
The artist painted a nude model.
アーティストはヌードモデルを描きました。
C2 adjective /ˈnjuː.ɡə.tɔːr.i/

nugatory

無価値
Meaning
Of little or no value; worthless or insignificant.
Example
His efforts were nugatory and did not change the outcome.
彼の努力は無価値で、結果を変えることはなかった。
B2 verb /nɒd/

nod

うなずく
Meaning
to move one's head down and up to show agreement or acknowledgment
Example
She nodded in agreement with the proposal.
彼女は提案に同意してうなずいた。
A2 noun (plural) /ˈnuːdəlz/

noodles

Meaning
long, thin strips of dough made from flour, water, or eggs, cooked and eaten as food
Example
She cooked noodles with vegetables for dinner.
彼女は夕食に野菜入りの麺を作った。
B2 adjective /nəˈtɔːriəs/

notorious

悪名高い
Meaning
Famous or well-known for something bad or undesirable
Example
The area is notorious for its high crime rate.
その地域は高い犯罪率で悪名高いです。
B2 adjective /ˈniː.di/

Needy

困窮した; 貧しい; 必要がある
Meaning
requiring help or support; poor; lacking basic necessities
Example
The charity helps needy families during the winter.
チャリティは冬に困窮している家族を助けます。
C1 noun /nuːs/

Noose

ロープ
Meaning
a loop with a running knot used for hanging; a trap or snare
Example
The cowboy made a noose to catch the wild horse.
カウボーイは野生の馬を捕まえるためにロープを作りました。
C2 noun /ˈneɪˌseɪ.ɪŋ/

naysaying

否定的な発言
Meaning
The act of expressing negative or pessimistic views.
Example
His constant naysaying discouraged the team.
彼の絶え間ない否定的な発言はチームをがっかりさせました。
B2 adverb /ˈnæʃənəli/

nationally

全国的に
Meaning
at the level of a whole nation; in a way that involves or affects an entire country
Example
The policy was implemented nationally to ensure equal benefits for all citizens.
その政策は、すべての市民に平等な利益を確保するため、全国的に実施された。
C1 noun /ˈnɪkəl/

nickel

ニッケル
Meaning
a small coin, typically worth five cents in the United States
Example
He found a nickel on the ground.
彼は地面でニッケルを見つけた。
C2 noun /nəˈkrɒpəlɪs/

necropolis

古代の墓地
Meaning
a large ancient cemetery with elaborate tombs
Example
The archaeologists discovered artifacts in the necropolis of the ancient city.
考古学者たちは古代都市のネクロポリスで遺物を発見しました。
C2 adjective ˌnjʊə.rəʊ.saɪənˈtɪ.fɪk

neuroscientific

神経科学的
Meaning
Related to the scientific study of the brain and nervous system.
Example
Neuroscientific research helps understand memory retention.
ニューロサイエンティフィックな研究は、記憶の保持を理解するのに役立ちます。
B2 adverb /ˈnɔɪzɪli/

Noisily

騒々しく
Meaning
in a way that makes a lot of noise; loudly
Example
The children were playing noisily in the playground.
子供たちは遊び場で騒がしく遊んでいました。
A2 verb /nɜːrs/

nurse

看護する
Meaning
to care for someone who is sick or injured; to feed a baby
Example
She nursed her sick mother back to health.
彼女は病気の母親の世話をして、元気を取り戻させました。
C2 noun /ˌnɒn ˈsɛkwɪtər/

non sequitur

論理的に関連しない発言
Meaning
a statement or conclusion that does not logically follow from the previous statement
Example
His comment about the weather was a complete non sequitur during the budget discussion.
予算の議論中、彼の天気に関するコメントは完全に論理的に関連しない発言だった。
A2 noun /ˈneɪ.bər/

Neighbour

隣人; 近く
Meaning
a person who lives near or next to another person
Example
My neighbour is very friendly and helpful.
私の隣人はとても親切で役に立ちます。
A2 adverb /ˈnɪərli/

Nearly

ほとんど; ほぼ;
Meaning
almost; not quite; very close to
Example
I nearly missed the bus this morning.
今朝、バスをほとんど逃しそうになった。
B2 adverb /ˌnɒnˈstɒp/

Non-stop

ノンストップ; 途切れなく
Meaning
continuing without stopping; without interruption
Example
The train traveled non-stop from London to Paris.
その列車はロンドンからパリまでノンストップで走った。
C1 noun /noʊˈteɪʃən/

notation

記号法
Meaning
A system of symbols or signs used to represent information, especially in mathematics or music.
Example
The teacher explained the notation used in the algebra equations.
先生は代数方程式で使用される記号法を説明しました。
B2 noun, adjective, adverb /ˌnɔːrθˈwest/

northwest

北西
Meaning
the direction that is between north and west; situated in or moving toward this direction
Example
Seattle is located in the northwest of the United States.
シアトルはアメリカ合衆国の北西部にあります。
B2 adjective /ˈnuːkliər/

nuclear

原子力
Meaning
relating to the nucleus of an atom or to nuclear energy
Example
The country is developing nuclear energy.
その国は原子力エネルギーを開発しています。
B1 adjective /ˈnær.oʊ/

Narrow

狭い; 限定された; 狭まった
Meaning
having a small width; thin; limited in scope; restricted
Example
The narrow street was barely wide enough for two cars.
その狭い道は2台の車が通るにはほとんど十分な広さがありませんでした。
C1 adjective /ˈneɪm.ləs/

Nameless

名も無き; 匿名の; 不明の; 未確認の
Meaning
having no name; anonymous; unknown; unidentified
Example
The nameless fear haunted him throughout the night.
名も無き恐怖が彼を一晩中追い詰めた。
A2 noun /nɔɪz/

Noise

騒音
Meaning
a sound, especially one that is loud or unpleasant
Example
The noise from the construction site was very disturbing.
建設現場からの騒音は非常に迷惑でした。
C1 noun /ˈnjʊə.rəʊ.trænsˌmɪt.ərs/

neurotransmitters

神経伝達物質
Meaning
Chemical messengers that transmit signals across nerve synapses, affecting mood, behavior, and cognitive functions.
Example
Serotonin and dopamine are key neurotransmitters affecting mood.
セロトニンとドーパミンは気分に影響を与える主要な神経伝達物質です。
C2 noun /ˈnɒn.ɪʤ/

Nonage

未成年
Meaning
the period of being under the legal age of majority; youth or immaturity
Example
During his nonage, all legal decisions were made by his guardian.
彼が未成年であった間、すべての法的決定は保護者によって下された。
C1 verb /nɪp/

nip

軽くつねる
Meaning
to pinch or bite lightly; to move quickly
Example
The cold wind nipped at my face.
冷たい風が私の顔を軽くつねった。
C1 noun /ˈnaɪ.tɪŋ.ɡeɪl/

Nightingale

ナイチンゲール
Meaning
small songbird known for its beautiful singing, especially at night
Example
The nightingale sang sweetly in the moonlight.
ナイチンゲールは月明かりの中で甘美に歌った。
B2 noun nɪˈsesɪti

necessity

必要性
Meaning
The fact of being required or indispensable; an indispensable thing.
Example
Waste management is a necessity for environmental sustainability.
廃棄物管理は環境の持続可能性にとって必要不可欠です。
C2 noun /ˌnjʊə.rəʊˈdʒɛn.ɪ.sɪs/

neurogenesis

新しい神経細胞の形成プロセス
Meaning
The process of forming new nerve cells in the brain.
Example
Scientists are studying neurogenesis to understand brain health.
科学者たちは神経発生を研究して、脳の健康を理解しようとしています。
B1 noun /ˈneɪʃən/

nation

国家
Meaning
a large group of people united by common descent, history, culture, or language
Example
The nation celebrated its independence day with pride.
その国は独立記念日を誇りを持って祝いました。
A2 noun /nʌt/

nut

ナッツ
Meaning
a hard-shelled fruit that contains a seed, or a small metal piece used in machinery
Example
She ate a peanut, which is a type of nut.
彼女はピーナッツを食べました、それはナッツの一種です。
A2 adjective /ˈnæsti/

nasty

嫌な
Meaning
very unpleasant, unkind, or offensive
Example
He made a nasty comment about her dress.
彼は彼女のドレスについて嫌なコメントをしました。
C1 noun /nɑːtʃ/

notch

切り込み
Meaning
A small cut or groove on the edge or surface of something; a level or degree of achievement.
Example
He carved a notch on the stick to mark the days.
彼は日数を記録するために棒に切り込みを入れました。
C2 noun /niːp/

neap

小潮
Meaning
A tide just after the first or third quarters of the moon when the difference between high and low tide is least.
Example
During a neap tide, the water level change is minimal.
ニープタイドの間、水位の変化は最小限です。
C1 adjective /ˈnɒnʃələnt/

nonchalant

Meaning
Appearing calm, casual, and unconcerned.
Example
He gave a nonchalant shrug and walked away.
C2 verb /ˈnɔːzieɪt/

nauseate

吐き気を催す
Meaning
To make someone feel sick, with an inclination to vomit.
Example
The spoiled food nauseated him quickly.
腐った食べ物は彼をすぐに吐き気を催させました。
C1 adjective /nəʊˈmæd.ɪk/

nomadic

遊牧
Meaning
Living the life of a nomad; wandering from place to place without a fixed home.
Example
The tribe led a nomadic lifestyle.
部族はノマディックなライフスタイルを送っていた。
C1 noun /ˈnʌr.ɪʃ.mənt/

nourishment

栄養
Meaning
Food and nutrients necessary for the body's growth and development.
Example
Proper nourishment is essential for child development.
適切な栄養は子供の発達に不可欠です。
C1 noun /ˈnɔːrmən/

Norman

Meaning
A member of a people of mixed Scandinavian and Frankish origin who settled in Normandy, or relating to their culture.
Example
The Normans conquered England in 1066.
B1 noun /ˈneɪvi/

Navy

海軍
Meaning
the branch of armed forces that conducts military operations at sea
Example
He joined the navy after graduating from college.
彼は大学を卒業した後、海軍に入隊した。