nucleus
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C1 noun ˈnuːkliəs

nucleus

Meaning
The central core of an atom containing protons and neutrons.
Example
The nucleus consists of protons.
C2 verb /ˌnɒnˈplʌst/

nonplused

Meaning
Past tense of nonplus; surprised and confused.
Example
She was completely nonplused by his sudden decision.
B2 noun ˈnɒv.əl.ti

novelty

Meaning
The quality of being new, original, or unusual; a new or unfamiliar thing or experience.
Example
The novelty of the invention attracted investors.
B2 adjective /ˈnoʊtəbl/

notable

Meaning
worthy of attention or notice; remarkable
Example
She made a notable contribution to the project.
B2 adjective /naɪˈiːv/

naive

Meaning
Having a lack of experience or sophistication; overly innocent or trusting.
Example
She was naive to believe the scammer’s story.
A1 noun /naɪt/

night

Meaning
the time of darkness between one day and the next, when most people sleep
Example
She loves going for walks at night.
C1 verb /ˈnjuːtrəlaɪz/

neutralize

Meaning
to make something ineffective or harmless
Example
The medicine helped neutralize the poison in his system.
C1 adjective /ˈneɪm.ləs/

Nameless

Meaning
having no name; anonymous; unknown; unidentified
Example
The nameless fear haunted him throughout the night.
C1 adjective/noun /ˈnɜːr.tʃɚ.ɪŋ/

nurturing

Meaning
The process of caring for and encouraging growth or development.
Example
A nurturing environment helps children thrive.
B2 noun /ˌnɒməˈneɪʃən/

nomination

Meaning
The act of formally proposing someone for a role, position, or award.
Example
Her nomination for the award surprised everyone.
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

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.
B2 adjective /nəˈtɔːriəs/

notorious

Meaning
Famous or well-known for something bad or undesirable
Example
The area is notorious for its high crime rate.
B1 noun /ˈnɜːrsɪŋ/

nursing

Meaning
the profession or practice of caring for the sick or injured
Example
She is studying nursing to become a healthcare professional.
C2 verb /ˌnɒnˈplʌst/

nonplussed

Meaning
Past tense of nonplus; surprised and unsure how to react.
Example
He stood nonplussed at the strange remark.
C2 noun /ˌnjʊə.rəʊˈdʒɛn.ɪ.sɪs/

neurogenesis

Meaning
The process of forming new nerve cells in the brain.
Example
Scientists are studying neurogenesis to understand brain health.
B2 noun /ˈnuː.tri.ənt/

nutrient

Meaning
A substance that provides nourishment essential for growth and health of plants or animals.
Example
Plants absorb nutrients from the soil for growth.
A2 noun /niːs/

niece

Meaning
the daughter of one's brother or sister
Example
My niece is studying at the university this year.
A2 conjunction /nɔːr/

nor

Meaning
used to introduce a negative clause after a negative statement
Example
He didn't call, nor did he send a message.
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.
B1 adjective /ˈnær.oʊ/

Narrow

Meaning
having a small width; thin; limited in scope; restricted
Example
The narrow street was barely wide enough for two cars.
C1 noun /ˈnɑː.sɪ.sɪ.zəm/

narcissism

Meaning
Excessive interest in or admiration of oneself; extreme selfishness.
Example
His excessive narcissism made it difficult for him to empathize with others.
A1 adjective /naɪs/

Nice

Meaning
pleasant; agreeable; satisfactory; good; attractive
Example
She wore a nice dress to the party.
A2 noun /ˈneɪbər/

neighbor

Meaning
a person living next door or nearby
Example
My neighbor lent me some sugar when I ran out.
C1 adjective /ˈniːd.ləs/

Needless

Meaning
unnecessary; not required; without purpose
Example
The argument was needless and could have been avoided.
C2 noun /nəˈkrɒpəlɪs/

necropolis

Meaning
a large ancient cemetery with elaborate tombs
Example
The archaeologists discovered artifacts in the necropolis of the ancient city.
C1 adjective /ˈnær.oʊ ˈmaɪn.dɪd/

Narrow-minded

Meaning
unwilling to consider new ideas; prejudiced; intolerant; having a limited perspective
Example
His narrow-minded attitude prevented him from accepting new ideas.
C2 noun /ˈnɛtl̩/

nettle

Meaning
a plant with stinging hairs that cause irritation when touched
Example
He accidentally brushed against the nettle and felt a sharp sting.
C1 adjective /nɑːkˈtɜr.nəl/

Nocturnal

Meaning
active at night; happening during the night
Example
Owls are nocturnal animals that hunt at night.
A2 adverb /ˈnoʊwɛr/

Nowhere

Meaning
not anywhere; in no place
Example
I searched everywhere but the keys were nowhere to be found.
B1 noun /nest/

Nest

Meaning
a structure built by birds to lay eggs and shelter their young
Example
The bird built a nest in the tree.
B2 adverb /ˈneɪmli/

Namely

Meaning
that is to say; specifically; to be precise
Example
Three cities, namely Paris, London, and Rome, were visited.
B2 noun /ˈnæʃənəl ˈænθəm/

national anthem

Meaning
an official patriotic song of a country, performed at national events and ceremonies
Example
The national anthem was played before the international match.
B2 adjective /ˈneɪvəl/

naval

Meaning
relating to a country's navy or military ships
Example
The country invested heavily in naval defense.
C1 adjective /ˌniːoʊˈlɪθɪk/

neolithic

Meaning
Relating to the later part of the Stone Age, when ground or polished stone weapons and tools prevailed.
Example
Neolithic communities began practicing agriculture and domesticating animals.
C2 noun /ˌɛn.biː.esˈpiː/

nbsp

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.
C1 adjective /ˈnjʊrəl/

neural

Meaning
Relating to nerves or the nervous system.
Example
Scientists study neural connections in the brain.
C1 adjective /ˌnjʊə.rəˈlɒdʒ.ɪ.kəl/

neurological

Meaning
Relating to the anatomy, functions, and organic disorders of nerves and the nervous system.
Example
Meditation has positive neurological effects on mental health.
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
C1 adjective /ˈneɡ.lɪ.dʒənt/

Negligent

Meaning
failing to take proper care; careless; showing lack of attention
Example
The negligent driver caused a serious accident.
C1 adjective /ˈnɔːtɪkəl/

nautical

Meaning
relating to ships, sailors, or navigation on water
Example
He studied nautical charts before setting sail.
B2 noun; adjective /ˌnɒnˈprɒfɪt/

non-profit

Meaning
an organization that does not operate for profit and reinvests surplus to achieve social goals; not intended to make financial profit
Example
She works for a non-profit that provides free education to underprivileged children.
C1 noun /ˈnɔːrməlsi/

normalcy

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.
B1 noun /nuːn/

noon

Meaning
12 o'clock in the daytime; midday
Example
The meeting will start at noon.
B2 adverb /ˌnɛvəðəˈlɛs/

nevertheless

Meaning
in spite of that; however
Example
He was tired; nevertheless, he kept working.
B2 noun /ˈnɪk.neɪm/

Nickname

Meaning
a familiar or humorous name given to a person instead of their real name
Example
His nickname is 'Tiger' because he's so brave.
B2 adjective /ˈniː.di/

Needy

Meaning
requiring help or support; poor; lacking basic necessities
Example
The charity helps needy families during the winter.
C1 noun /ˈneɪ.vəl fɔːrs/

Naval Force

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.
B2 noun ˌnæv.ɪˈɡeɪ.ʃən

navigation

Meaning
The process or activity of accurately ascertaining one's position and planning and following a route.
Example
GPS technology has improved the navigation of self-driving cars.
C1 adjective /ˈnɒnʃələnt/

nonchalant

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

neo-darwinism

Meaning
A modern interpretation of Darwin's theory of evolution, integrating genetics and natural selection.
Example
Neo-Darwinism combines Darwin’s theory of natural selection with modern genetics.
B2 verb /nɪˈɡoʊ.ʃi.eɪt/

negotiate

Meaning
To discuss something formally in order to reach an agreement.
Example
They negotiated a fair deal with the supplier.
C1 noun /ˈnʌt.meg/

Nut meg

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.
B2 verb /nɒd/

nod

Meaning
to move one's head down and up to show agreement or acknowledgment
Example
She nodded in agreement with the proposal.
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

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.
A2 adverb /ˈnɪərbaɪ/

Near-by

Meaning
close to; not far away; in the neighborhood
Example
There is a grocery store nearby.
A2 noun /ˈnefjuː/

nephew

Meaning
the son of one’s brother or sister
Example
My nephew is studying at the university.
A2 noun /ˈneɪ.bər/

Neighbour

Meaning
a person who lives near or next to another person
Example
My neighbour is very friendly and helpful.
C2 noun /ˈnɑːstrəm/

nostrum

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.
B2 noun /næˈreɪʃən/

narration

Meaning
The act of telling a story or describing events in detail.
Example
The movie’s narration was done by a famous actor.
C1 noun /ˈnɛktəriːn/

nectarine

Meaning
A smooth-skinned variety of peach.
Example
She bought a basket of fresh nectarines from the market.
B1 noun /ˈnɜːrsəri/

nursery

Meaning
a room or place where young children are cared for
Example
She works in a nursery, taking care of infants.
B2 adjective /ˌnɒnˈprɒfɪt/

nonprofit

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.
C2 noun /ˈnʌnəri/

nunnery

Meaning
A convent or building where nuns live and work.
Example
She decided to join the nunnery to devote her life to spiritual practice.
C1 adjective + noun njuˈtrɪʃəs krɒps

nutritious crops

Meaning
Plants or vegetables that are rich in nutrients and beneficial for health
Example
Winter vegetables are considered nutritious crops.
C1 noun ˈnærətɪv staɪl

narrative style

Meaning
The way in which a story is told, including the point of view and the voice of the narrator.
Example
Dickens' narrative style is engaging and emotional.
C1 adjective /nəʊˈmæd.ɪk/

nomadic

Meaning
Living the life of a nomad; wandering from place to place without a fixed home.
Example
The tribe led a nomadic lifestyle.
B2 noun /ˈnɛtˌwɜːkɪŋ/

networking

Meaning
The action of establishing connections and relationships, especially for career or business purposes.
Example
Networking is important for career development.
A2 pronoun /nʌn/

none

Meaning
not any; no one; not one
Example
None of the students passed the exam.
C1 noun /ˈnoʊ.və/

Nova

Meaning
a star that suddenly increases greatly in brightness
Example
Astronomers discovered a new nova in the constellation.
C2 noun /ˈniːəˌfaɪt/

neophyte

Meaning
A beginner or novice in a subject, skill, or belief.
Example
As a neophyte in programming, she often asked for guidance from her mentor.
C1 adverb /ˈnæroʊli/

Narrowly

Meaning
by a small margin; barely; in a limited way
Example
She narrowly escaped the accident.
C1 adverb /ˈnɔːθwədz/

Northwards

Meaning
towards the north; in a northerly direction
Example
The birds migrate northwards in spring.
C1 noun /ˈnoʊmæd/

nomad

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.
C1 noun /ˈnɪkəl/

nickel

Meaning
a small coin, typically worth five cents in the United States
Example
He found a nickel on the ground.
C2 noun /ˈnɒn.ɪʤ/

Nonage

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.
B1 noun/adjective /ˈnɒvəl/

novel

Meaning
A long fictional narrative; also something new or unusual.
Example
She spent the weekend reading a historical novel.
C2 noun /ˈneɪˌseɪ.ɪŋ/

naysaying

Meaning
The act of expressing negative or pessimistic views.
Example
His constant naysaying discouraged the team.
C1 adjective /ˈnɔɪz.ləs/

Noiseless

Meaning
making no sound; completely silent
Example
She moved through the house in noiseless steps so as not to wake the baby.
C1 noun /ˈnep.ə.tɪz.əm/

Nepotism

Meaning
the practice of favoring relatives or friends in business or politics
Example
The company was accused of nepotism in its hiring practices.
C2 verb /ˈnuːkliˌeɪt/

nucleate

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.
A1 adverb /ˈnɛvər/

never

Meaning
at no time in the past or future; not ever
Example
I have never seen such a beautiful sunset.
B1 adjective /ˈnɔːðərn/

northern

Meaning
relating to the north or situated in the north
Example
The northern part of the country is known for its cold climate.
C2 noun /ˈnes.lɪŋ/

Nestling

Meaning
a young bird that has not yet left its nest
Example
The mother bird fed the hungry nestling with worms.
A2 noun /nʌt/

nut

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.
C1 noun /ˈnjʊə.rəʊ.trænsˌmɪt.ərs/

neurotransmitters

Meaning
Chemical messengers that transmit signals across nerve synapses, affecting mood, behavior, and cognitive functions.
Example
Serotonin and dopamine are key neurotransmitters affecting mood.
C1 noun /ˈnʌr.ɪʃ.mənt/

nourishment

Meaning
Food and nutrients necessary for the body's growth and development.
Example
Proper nourishment is essential for child development.
C1 adjective ˌnɒnˈvɜːr.bəl

nonverbal

Meaning
Communication using body language, facial expressions, or gestures instead of words
Example
Nonverbal cues play a crucial role in effective communication.
C1 adjective /ˌnɒn ɪɡˈzɪstənt/

non-existent

Meaning
not real or not present; lacking existence
Example
The supposed evidence turned out to be non-existent.
C1 verb /nʌdʒ/

nudge

Meaning
To push someone gently, usually with your elbow, in order to attract attention.
Example
She nudged him to be quiet during the meeting.
C1 noun /nɪərˈvɑːnə/

nirvana

Meaning
A state of perfect happiness, peace, and freedom from suffering; in Buddhism, the ultimate goal of liberation.
Example
Meditation helps some people seek nirvana in their lives.
A2 adjective /ˈnɔɪ.zi/

Noisy

Meaning
making a lot of loud or unpleasant sound; clamorous
Example
The noisy construction work outside made it difficult to concentrate.
C2 adjective /nɪˈfɛəriəs/

nefarious

Meaning
Wicked, criminal, or morally bad.
Example
The police uncovered a nefarious plot to cheat investors.
A1 noun /nuːz/

news

Meaning
newly received or noteworthy information, especially about recent events
Example
The news about the storm spread quickly.
C1 noun /ˈnɑːrsɪsɪst/

narcissist

Meaning
A person who has an excessive interest in or admiration of themselves.
Example
Everyone avoided him because he was a narcissist.
C1 verb /ˈnɛsəl/

nestle

Meaning
to settle or lie comfortably within or against something
Example
The child nestled into her mother's arms.
C2 noun /ˈnoʊmənˌkleɪtʃər/

nomenclature

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.
B1 noun /nɛt/

net

Meaning
a piece of material made of threads or ropes woven together, used to catch or hold things
Example
The fisherman cast his net into the sea.
B2 noun, adjective, adverb /ˌnɔːrθˈwest/

northwest

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.
C2 noun /naɪt kwiːn/

Night queen

Meaning
a fragrant white flower that blooms at night and releases strong sweet scent
Example
The night queen flowers filled the garden with their sweet fragrance.
C1 noun /ˈnɒs.trɪl/

Nostril

Meaning
either of the two openings in the nose through which air passes
Example
The doctor checked each nostril for any blockage.
C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
B2 adverb /ˈnoʊtəbli/

notably

Meaning
used to indicate something worthy of attention or significant
Example
She is notably talented in painting.
A2 noun /ˈnæpkɪn/

napkin

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.
C1 noun /naɪˈiːvɪti/

naivety

Meaning
The quality of being innocent, simple, and lacking experience or sophistication.
Example
Her naivety made her trust people too easily.
C2 verb /ˌnɒnˈplʌs/

nonplus

Meaning
To surprise and confuse someone so much that they are unsure how to react.
Example
The unexpected question seemed to nonplus the speaker.
B1 noun /ˈneɪvi/

Navy

Meaning
the branch of armed forces that conducts military operations at sea
Example
He joined the navy after graduating from college.
B2 adjective /ˈnoʊ.bəl/

Noble

Meaning
having high moral qualities; honorable; generous; of aristocratic birth
Example
His noble actions helped many people in need.
A2 adverb /ˈnaʊədeɪz/

nowadays

Meaning
At the present time; in contrast with the past.
Example
Nowadays, many people prefer shopping online.
B2 noun /ˈnuː.kʌm.ər/

New-comer

Meaning
a person who has recently arrived in a place or joined a group
Example
The newcomer was warmly welcomed by the team.
B2 adjective, verb /ˈnoʊtɪd/

noted

Meaning
well known or famous; written down or observed
Example
He is a noted author in the field of history.
B2 noun ˈnætʃərəl ˈhæbɪtæt

Natural Habitat

Meaning
The natural environment where organisms live and fulfill their life needs.
Example
Protecting the natural habitat is crucial for butterflies.
B2 noun /ˈnuː.səns/

Nuisance

Meaning
a person, thing, or circumstance causing inconvenience or annoyance
Example
The constant noise from construction is a real nuisance.
C2 adjective /ˈneɪtl/

natal

Meaning
Relating to birth or the place of birth.
Example
She returned to her natal village after many years.
C1 noun /nɪˈɡeɪʃən/

negation

Meaning
The act of denying something; the contradiction or absence of something.
Example
The theory is built on the negation of traditional beliefs.
C2 noun /niːˈɒkrəsi/

neocracy

Meaning
A government or leadership run by inexperienced or new officials.
Example
The sudden revolution led to a neocracy with inexperienced leaders.
C1 noun /ˈnɒnʃələns/

nonchalance

Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
C2 noun /nɑːrˈsɪsəs/

narcissus

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.
A2 adverb /ˈnɪərli/

Nearly

Meaning
almost; not quite; very close to
Example
I nearly missed the bus this morning.
C2 adjective /ˈnæti/

natty

Meaning
Neat, stylish, and fashionable in appearance.
Example
He looked very natty in his new suit.
C2 adjective ˌnjʊəroʊˈkɒɡnɪtɪv

neurocognitive

Meaning
Related to brain information processing and memory power
Example
Neurocognitive functions decline due to lack of sleep.
B2 verb /ˈnæreɪt/

narrate

Meaning
To tell a story or describe events, often in detail.
Example
She will narrate the events of her journey to the audience.