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A1 adjective /njuː/

new

新しい
Meaning
recently made, discovered, or introduced; not existing before
Example
He bought a new car yesterday.
彼は昨日新しい車を買いました。
B2 adjective /ˈnoʊtəbl/

notable

顕著な
Meaning
worthy of attention or notice; remarkable
Example
She made a notable contribution to the project.
彼女はプロジェクトに顕著な貢献をしました。
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。
C1 adjective /ˌnɒn ɪɡˈzɪstənt/

non-existent

存在しない
Meaning
not real or not present; lacking existence
Example
The supposed evidence turned out to be non-existent.
仮定された証拠は存在しないことが判明しました。
A1 noun neɪmz

Names

名前
Meaning
A word or set of words by which a person or thing is known.
Example
Names of family members are written on the family tree.
家族の名前は家系図に書かれています。
A2 noun /ˈnjuːzˌpeɪpər/

newspaper

新聞
Meaning
a printed publication (usually daily or weekly) containing news, articles, advertisements, and correspondence
Example
I read the newspaper every morning.
私は毎朝新聞を読みます。
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 verb /ˌnɒnˈplʌst/

nonplussed

困惑
Meaning
Past tense of nonplus; surprised and unsure how to react.
Example
He stood nonplussed at the strange remark.
彼は奇妙なコメントに困惑して立ち尽くしていた。
B1 noun /ˈneɪbərˌhʊd/

neighborhood

近所
Meaning
a district or area around or near a particular place
Example
I grew up in a quiet neighborhood.
私は静かな近所で育ちました。
C2 verb /ˌnɒnˈplʌst/

nonplused

困惑した
Meaning
Past tense of nonplus; surprised and confused.
Example
She was completely nonplused by his sudden decision.
彼女は彼の突然の決断に完全に困惑していました。
C2 noun /ˌniːoʊˈpeɪɡənɪzəm/

neopaganism

ネオペイガニズム
Meaning
Modern religious movements influenced by or claiming to be derived from the various historical pagan beliefs of pre-modern Europe.
Example
Neopaganism has gained popularity as people seek spiritual alternatives to mainstream religions.
ネオペイガニズムは、人々が主流の宗教に代わる精神的な選択肢を探しているため、人気を集めています。
B2 verb /ˈnæreɪt/

narrate

物語る
Meaning
To tell a story or describe events, often in detail.
Example
She will narrate the events of her journey to the audience.
彼女は観客に自分の旅の出来事を語るでしょう。
C2 noun /nɪˈkrɒlədʒi/

necrology

訃報
Meaning
An obituary notice or a list of people who have recently died.
Example
The newspaper published a necrology of notable figures who passed away that year.
その新聞は、その年に亡くなった著名な人物のネクロロジーを発表しました。
C1 noun /ˈnʌt.meg/

Nut meg

ナツメグ
Meaning
a spice made from the seed of the fruit of an evergreen tree, used in cooking and baking
Example
The recipe called for a teaspoon of ground nutmeg to flavor the custard.
レシピにはカスタードに風味を加えるために、小さじ1杯のナツメグが必要でした。
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。
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。
C2 verb /ˌnɒnˈplʌs/

nonplus

困惑させる
Meaning
To surprise and confuse someone so much that they are unsure how to react.
Example
The unexpected question seemed to nonplus the speaker.
予期しない質問がスピーカーを困惑させたようだ。
C1 noun /ˌnɑm.əˈni/

Nominee

ノミネートされた人
Meaning
a person who is nominated for an office, award, or honor
Example
She was the nominee for the Best Actress award.
彼女は最優秀女優賞のノミネートされた人でした。
B2 adjective /ˈneɪ.bər.ɪŋ/

Neighbouring

隣接した; 近接した; 隣国の
Meaning
situated next to or very near; adjacent; bordering
Example
We often visit our neighbouring countries for trade.
私たちは貿易のために隣国をよく訪れます。
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。
C1 verb /nɪˈɡeɪt/

negate

Meaning
To cancel out or make ineffective; to deny the truth of something.
Example
The new evidence will negate the claims made earlier.
B2 noun, verb /nɜːrv/

nerve

神経; 勇気
Meaning
A bundle of fibers in the body that transmits signals between the brain and other parts; also courage or audacity.
Example
She gathered the nerve to speak in front of the large audience.
彼女は大きな観客の前で話す勇気を持っていた。
C2 adjective /ˈnjuː.trɪ.tɪv/

nutritive

栄養のある
Meaning
Relating to nutrition; having nourishing qualities.
Example
The nutritive value of the fruit is very high.
果物の栄養価は非常に高いです。
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

無関心
Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
無関心な親は子供を何時間も一人で放置した。
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。
C1 adjective /ˈniːd.ləs/

Needless

不必要な
Meaning
unnecessary; not required; without purpose
Example
The argument was needless and could have been avoided.
その議論は不必要で、避けることができたはずだ。
C1 noun /ˈnoʊ.və/

Nova

新星
Meaning
a star that suddenly increases greatly in brightness
Example
Astronomers discovered a new nova in the constellation.
天文学者たちは星座で新しいノヴァを発見しました。
B2 adjective /njuːˈtrɪʃ.əs/

Nutritious

栄養価の高い
Meaning
containing substances that help the body grow and stay healthy; nourishing
Example
Eating nutritious food helps maintain good health.
栄養価の高い食べ物を摂ることは、健康を保つのに役立ちます。
A1 noun /nuːz/

news

ニュース
Meaning
newly received or noteworthy information, especially about recent events
Example
The news about the storm spread quickly.
嵐に関するニュースはすぐに広まりました。
C2 noun /ˈnoʊzˌɡeɪ/

nosegay

花束
Meaning
a small bunch of flowers, typically given as a gift or carried for decoration
Example
She carried a nosegay of fresh roses to the ceremony.
彼女は式典に新鮮なバラの花束を持って行った。
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。
A2 noun (plural) /ˈnuːdəlz/

noodles

麺
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。
A2 adverb /ˈnɔːməli/

Normally

通常
Meaning
in the usual way; under normal circumstances
Example
I normally wake up at 7 AM every day.
私は通常毎日午前7時に起きます。
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 /ˈnɒnʃələns/

nonchalance

無頓着
Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
彼女は驚くべき無頓着で難しい質問に答えました。
C2 adjective /ˌnɒnkəˈmɪtl̩/

noncommittal

Meaning
Not expressing or showing a clear opinion, decision, or commitment.
Example
She gave a noncommittal reply when asked about her future plans.
A2 verb /noʊt/

note

ノートする
Meaning
to write down or observe something; to pay attention to
Example
Please note the important points during the lecture.
講義中に重要な点をノートしてください。
B2 adjective /njuːˈmɛrɪkəl/

numerical

数値的
Meaning
relating to or expressed in numbers
Example
The report provides numerical data on population growth.
その報告書は人口増加に関する数値データを提供しています。
C1 adjective /ˈnɪmbəl/

nimble

素早い
Meaning
Quick and light in movement or thought.
Example
The dancer’s nimble steps impressed the audience.
ダンサーの素早いステップが観客を感動させた。
A2 adverb /ˈnaʊədeɪz/

Now-a-days

今どき; 現在
Meaning
at the present time; in these times
Example
Now-a-days, people prefer online shopping.
現在、人々はオンラインショッピングを好む。
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。
A2 adjective /niːt/

Neat

きれいで整理された; よく整理された; 丁寧に作られた
Meaning
clean and tidy; well-organized; carefully done
Example
Her room is always neat and organized.
彼女の部屋はいつもきれいで整理整頓されています。
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。
C2 noun /nɪb/

nib

ペン先
Meaning
the pointed end of a pen used for writing or drawing
Example
He dipped the nib into the ink before writing.
彼は書く前にペン先をインクに浸しました。
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。
C2 noun /ˈnaɪsəti/

nicety

微細さ
Meaning
a fine or subtle detail, or a refined, delicate aspect of something
Example
The lawyer explained the legal niceties of the case.
弁護士は事件の法的細部を説明しました。
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。
B2 adverb /ˌnɛvəðəˈlɛs/

nevertheless

Meaning
in spite of that; however
Example
He was tired; nevertheless, he kept working.
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 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！
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。
C2 noun /ˈnæfθə/

naphtha

ナフタ
Meaning
A flammable oil containing hydrocarbons, obtained from petroleum or coal tar, used as fuel or solvent.
Example
The factory stored barrels of naphtha for industrial use.
工場は工業用途のためにナフタの樽を保管していました。
C1 verb /ˈnʌlɪfaɪ/

nullify

無効にする
Meaning
to make something legally invalid or ineffective
Example
The court decided to nullify the contract.
裁判所は契約を無効にすることを決定しました。
A1 verb /niːd/

need

必要
Meaning
to require something; to be in want of
Example
I need help with my homework.
私は宿題に助けが必要です。
B2 noun /ˈnuː.kʌm.ər/

New-comer

新参者
Meaning
a person who has recently arrived in a place or joined a group
Example
The newcomer was warmly welcomed by the team.
その新参者はチームによって温かく迎えられました。
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。
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。
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。
A2 noun /niːs/

niece

姪
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。
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。
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。
C1 noun /ˌnoʊtəˈraɪəti/

notoriety

悪名
Meaning
The state of being famous or well-known for something bad.
Example
The criminal gained notoriety for his daring escapes.
その犯罪者は大胆な脱出で悪名を得た。
C2 noun /ˈnɛkrəˌmænsər/

necromancer

Meaning
a person who practices necromancy; a wizard or magician who claims to communicate with the dead
Example
The villagers feared the old necromancer who lived at the edge of the forest.
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。
C2 noun /nɑːrˈsɪsəs/

narcissus

ナルシスの花
Meaning
A type of flowering plant with yellow or white blooms, often associated with self-love from Greek mythology.
Example
A narcissus bloomed in the garden during spring.
春に、庭でナルシスの花が咲きました。
C1 verb /ˈnɔːrməlaɪz/

normalize

正常化する
Meaning
to bring something back to a normal or standard condition; to make something conform to a standard
Example
The government took steps to normalize relations with neighboring countries.
政府は関係を正常化するための措置を取った。
A2 noun ˈneɪ.tʃər

nature

自然。性格。
Meaning
The basic or inherent features of something, especially when seen as characteristic of it.
Example
The calm nature of the environment helps healing.
環境の穏やかな性質は癒しを助けます。
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。
C1 adjective /ˈnɔɪz.ləs/

Noiseless

無音の; 完全に静かな
Meaning
making no sound; completely silent
Example
She moved through the house in noiseless steps so as not to wake the baby.
彼女は赤ちゃんを起こさないように、無音で家の中を歩きました。
C1 noun /nɪl/

Nil

ゼロ; 何もない
Meaning
nothing; zero; no amount
Example
His chances of winning were nil after the scandal.
スキャンダル後、彼の勝つチャンスはゼロになった。
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。
C1 noun /ˈnɒs.trɪl/

Nostril

鼻孔
Meaning
either of the two openings in the nose through which air passes
Example
The doctor checked each nostril for any blockage.
医師は鼻孔のそれぞれをブロックがないか調べました。
B2 noun noʊˈbel praɪz

Nobel Prize

ノーベル賞
Meaning
Any of six international prizes awarded annually for outstanding work in physics, chemistry, physiology or medicine, literature, economics, and the promotion of peace.
Example
Nobel Prize recognition evaded Bose's contributions.
Nobel Prize recognition did not apply to Bose's contributions.
B1 adverb /ˈnætʃərəli/

Naturally

自然に
Meaning
in a natural manner; as expected; of course
Example
She naturally excels in mathematics.
彼女は数学で自然に優れている。
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 verb /nəˈsɛsɪteɪt/

necessitate

必要とする
Meaning
To make something necessary or unavoidable.
Example
The heavy rains necessitated the cancellation of the event.
激しい雨はイベントのキャンセルを避けられないものにしました。
C2 verb /ˈnuːkliˌeɪt/

nucleate

核形成
Meaning
to form into a nucleus or bring together into a central part
Example
The droplets began to nucleate around tiny particles in the air.
水滴は空気中の小さな粒子の周りで核を形成し始めました。
A1 noun /nɔːrθ/

north

北
Meaning
the direction toward the top of a map or the opposite of south
Example
We traveled north to reach the mountains.
私たちは山に到達するために北へ向かって旅しました。
B2 noun /ˈnuː.səns/

Nuisance

迷惑; 不便;
Meaning
a person, thing, or circumstance causing inconvenience or annoyance
Example
The constant noise from construction is a real nuisance.
建設の絶え間ない騒音は本当の迷惑です。
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 /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。
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。
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。
B1 adjective /ˈnɔːðərn/

northern

北部の
Meaning
relating to the north or situated in the north
Example
The northern part of the country is known for its cold climate.
その国の北部は寒冷な気候で知られています。
C1 noun /ˈnɜr.tʃər/

Nurture

養育
Meaning
the process of caring for and encouraging growth or development
Example
Good parenting involves both nature and nurture.
良い育て方は自然と養育の両方を含みます。
C2 verb /ˈnɪtˌpɪk/

nitpick

Meaning
To find and criticize small or unimportant faults in someone or something.
Example
She tends to nitpick about every little detail.
C1 adjective /ˈnɒnʃələnt/

nonchalant

Meaning
Appearing calm, casual, and unconcerned.
Example
He gave a nonchalant shrug and walked away.
B2 noun /ˌnəʊtɪfɪˈkeɪʃən/

notification

通知
Meaning
an official or formal notice or message informing someone of something; an alert delivered by a system or device
Example
You will receive a notification when your application is approved.
申請が承認されると通知が届きます。
C1 noun /ˈneɪ.vəl fɔːrs/

Naval Force

海軍
Meaning
the branch of a nation's armed services that conducts military operations at sea
Example
The naval force protected the country's coastline from enemy attacks.
海軍は敵の攻撃から国の海岸線を守った
C1 noun /ˈnoʊmæd/

nomad

ノマド
Meaning
A person who has no permanent home and moves from place to place.
Example
The desert was once home to nomads who lived by herding animals.
砂漠はかつて動物を飼うことで生きていたノマドの家だった。
A2 adverb /ˈnaʊədeɪz/

nowadays

最近
Meaning
At the present time; in contrast with the past.
Example
Nowadays, many people prefer shopping online.
最近、多くの人々がオンラインショッピングを好むようになった。
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 verb /ˈnɪbəl/

nibble

かじる
Meaning
to take small bites of food
Example
The rabbit nibbled on a carrot.
うさぎはにんじんをかじった。
C1 noun /ˈnɔːrməlsi/

normalcy

正常
Meaning
The condition of being normal; a return to usual or expected conditions.
Example
After the flood, the town struggled to regain a sense of normalcy.
洪水の後、町は正常な状態を取り戻すために奮闘しました。
B1 adverb /ˈnjuːli/

newly

最近
Meaning
in a new or recent manner
Example
She has newly renovated her house.
彼女は最近家をリフォームしました。
B2 noun ˈnætʃərəl ˈhæbɪtæt

Natural Habitat

自然の生息地
Meaning
The natural environment where organisms live and fulfill their life needs.
Example
Protecting the natural habitat is crucial for butterflies.
蝶々のために自然の生息地を守ることが重要です。
B2 adjective, adverb /ˈneɪʃənˌwaɪd/

nationwide

全国規模
Meaning
existing or happening throughout an entire nation
Example
The campaign received nationwide support.
キャンペーンは全国的な支持を得ました。
B2 noun ˈneɪʧər ɪnˈθjuːziæsts

Nature Enthusiasts

自然愛好家
Meaning
People who have a passionate interest in and love for the natural world and outdoor activities.
Example
Nature enthusiasts often visit Sajek Valley for its scenic beauty.
自然愛好家は、その美しい景色のためにサジェックバレーを訪れることがよくあります。
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。
B2 adverb /ˌnʌnðəˈlɛs/

nonetheless

それにもかかわらず
Meaning
in spite of that; nevertheless
Example
It was raining, but nonetheless, they went hiking.
雨が降っていましたが、それにもかかわらず、彼らはハイキングに行きました。
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, 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。
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。
A1 adjective /nɛkst/

next

次
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 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

脳の活動をリアルタイムで表示し、脳機能の自己調整を教える技術
Meaning
A technique that uses real-time displays of brain activity to teach self-regulation of brain function.
Example
Neurofeedback enhances cognitive performance and relaxation.
ニューロフィードバックは認知機能とリラクゼーションを高めます。
C2 adjective /ˈneb.jə.ləs/

Nebulous

曖昧な; 不明瞭な; 霧のような
Meaning
vague or unclear; lacking definite form; hazy
Example
His plans for the future remain nebulous and unclear.
彼の未来の計画は依然として曖昧で不明確です。
C1 adverb /ˈnɔːθwədz/

Northwards

北へ
Meaning
towards the north; in a northerly direction
Example
The birds migrate northwards in spring.
鳥たちは春に北へ移動します。
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 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。
A2 conjunction /ˈniːðər/

neither

どちらも〜ない
Meaning
used to connect two negative alternatives
Example
Neither the manager nor the assistant could attend the meeting.
マネージャーもアシスタントも会議に出席できなかった。
C1 noun /naɪˈiːvɪti/

naivety

無邪気
Meaning
The quality of being innocent, simple, and lacking experience or sophistication.
Example
Her naivety made her trust people too easily.
彼女の無邪気は、彼女が人々をあまりにも簡単に信頼させました。
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。
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 noun /ˈnaɪɪˌlɪzəm/

nihilism

虚無主義
Meaning
The rejection of all religious and moral principles, often in the belief that life is meaningless.
Example
The philosopher was criticized for promoting nihilism.
哲学者はニヒリズムを推進したとして批判されました。
C1 noun /nɪˈɡeɪʃən/

negation

否定
Meaning
The act of denying something; the contradiction or absence of something.
Example
The theory is built on the negation of traditional beliefs.
理論は伝統的な信念の否定に基づいています。
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。
C2 adjective ˌnjʊəroʊˈkɒɡnɪtɪv

neurocognitive

神経認知的
Meaning
Related to brain information processing and memory power
Example
Neurocognitive functions decline due to lack of sleep.
睡眠不足により神経認知的機能が低下する。
B1 adverb /ˈniːtli/

Neatly

きちんと; 清潔に
Meaning
in a tidy and orderly way; carefully and precisely
Example
She arranged the books neatly on the shelf.
彼女は本をきちんと棚に並べました。
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。
C1 verb /ˈnɛsəl/

nestle

寄り添う
Meaning
to settle or lie comfortably within or against something
Example
The child nestled into her mother's arms.
その子供は母親の腕に寄り添いました。
C1 noun njuːˈtræl.ə.ti

neutrality

中立
Meaning
The state of not supporting or helping either side in a conflict, disagreement, etc.; impartiality.
Example
Neutrality fosters trust in decision-making.
中立は意思決定において信頼を育みます。