naysaying
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C2 noun /ˈneɪˌseɪ.ɪŋ/

naysaying

expresión negativa
Meaning
The act of expressing negative or pessimistic views.
Example
His constant naysaying discouraged the team.
Su constante expresión negativa desmotivó al equipo.
C2 noun /ˈneɪdɪər/

nadir

nadir
Meaning
The lowest point of a situation or condition.
Example
The company reached its nadir during the financial crisis.
La empresa alcanzó su nadir durante la crisis financiera.
C2 adjective /ˈnɪɡərdli/

niggardly

tacaño
Meaning
unwilling to spend or give; stingy or miserly
Example
He was too niggardly to leave a decent tip.
Él era demasiado tacaño para dejar una propina decente.
C2 adjective /ˈnɒmɪk/

nomic

relacionado con la ley
Meaning
Relating to laws, rules, or systems.
Example
The philosopher discussed the nomic necessity of natural laws.
El filósofo discutió la necesidad nómica de las leyes naturales.
C2 noun /ˈnaɪɪˌlɪzəm/

nihilism

nihilismo
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.
El filósofo fue criticado por promover el nihilismo.
C2 noun /næˈteɪʃən/

natation

natación
Meaning
The act or sport of swimming.
Example
She took lessons in natation to improve her swimming skills.
Ella tomó clases de natación para mejorar sus habilidades de natación.
C2 verb /ˌnɒnˈplʌs/

nonplus

dejar perplejo
Meaning
To surprise and confuse someone so much that they are unsure how to react.
Example
The unexpected question seemed to nonplus the speaker.
La pregunta inesperada pareció dejar perplejo al orador.
C2 noun /niˈɒlədʒi/

neology

el uso de nuevas palabras o el estudio de su origen
Meaning
The use of new words or the study of their origin.
Example
The professor specialized in neology, studying the creation of modern slang.
El profesor se especializó en neología, estudiando la creación de jerga moderna.
C2 adjective /nɪˈfɛəriəs/

nefarious

malévolo, criminal o moralmente malo
Meaning
Wicked, criminal, or morally bad.
Example
The police uncovered a nefarious plot to cheat investors.
La policía descubrió un complot malévolo para engañar a los inversores.
C2 noun /ˈniːəˌfaɪt/

neophyte

neófito
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.
Como neófita en programación, a menudo pedía orientación a su mentor.
C2 adjective /ˌnɒnkəˈmɪtl̩/

noncommittal

reticente
Meaning
Not expressing or showing a clear opinion, decision, or commitment.
Example
She gave a noncommittal reply when asked about her future plans.
Ella dio una respuesta reticente cuando se le preguntó sobre sus planes futuros.
C2 verb /ˈnuːkliˌeɪt/

nucleate

nuclear
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.
Las gotas comenzaron a nuclearse alrededor de pequeñas partículas en el aire.
C2 adjective /ˈnjuː.ɡə.tɔːr.i/

nugatory

inútil
Meaning
Of little or no value; worthless or insignificant.
Example
His efforts were nugatory and did not change the outcome.
Sus esfuerzos fueron inútiles y no cambiaron el resultado.
C2 adjective /ˈnɛðər/

nether

inferior
Meaning
situated down or below; lower
Example
They explored the nether regions of the cave.
Exploraron las regiones inferiores de la cueva.
C2 noun /ˈnɛkrəˌmænsər/

necromancer

necromante
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.
Los aldeanos temían al viejo necromante que vivía al borde del bosque.
C2 noun /ˈnɛkrəˌmænsi/

necromancy

necromancia
Meaning
the practice of communicating with the dead, often to predict the future
Example
Ancient texts described rituals of necromancy performed by priests.
Los textos antiguos describen rituales de necromancia realizados por sacerdotes.
C2 noun /ˈnɛtl̩/

nettle

planta con espinas que causa irritación al tocarla
Meaning
a plant with stinging hairs that cause irritation when touched
Example
He accidentally brushed against the nettle and felt a sharp sting.
Él accidentalmente rozó la ortiga y sintió un ardor agudo.
C2 noun /nɑnˈen.tə.ti/

Nonentity

persona sin importancia; algo que no existe
Meaning
a person of no importance or influence; something that does not exist
Example
He felt like a nonentity in the large corporation.
Se sintió como una persona sin importancia en la gran corporación.
C2 noun /ˈnaɪsəti/

nicety

sutileza
Meaning
a fine or subtle detail, or a refined, delicate aspect of something
Example
The lawyer explained the legal niceties of the case.
El abogado explicó los detalles legales del caso.
C2 noun /niːˈɒlədʒɪzəm/

neologism

neologismo
Meaning
A newly coined word or expression.
Example
The internet has given rise to many neologisms like 'selfie' and 'hashtag'.
Internet ha dado lugar a muchos neologismos como 'selfie' y 'hashtag'.
C2 noun /njʊˈrældʒə/

neuralgia

dolor neural
Meaning
intense, often intermittent pain along a nerve pathway
Example
The patient suffers from neuralgia in her face.
El paciente sufre de neuralgia en su cara.
C2 noun /ˈnaɪəlɪst/

nihilist

nihilista
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.
Se le llamó nihilista por rechazar todas las normas sociales.
C2 noun /ˌnɒvəˈlɛt/

novellette

novelito
Meaning
A short novel or long short story.
Example
The author published a novellette as a preview of her upcoming series.
El autor publicó un novelito como adelanto de su próxima serie.
C2 noun /naɪt ˈdʒæz.mɪn/

Night-jesmine

jazmín nocturno
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.
El árbol de jazmín nocturno florece solo después del atardecer con sus pequeñas flores blancas.
C2 noun /nɪˈkrɒlədʒi/

necrology

necrológico
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.
El periódico publicó una necrología de figuras notables que fallecieron ese año.
C2 noun /ˈnæfθə/

naphtha

nafta
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.
La fábrica almacenaba barriles de nafta para uso industrial.
C2 noun /ˈnɪn.i/

Ninny

tonto
Meaning
a silly or foolish person; someone who lacks common sense
Example
Don't be such a ninny, use your brain!
¡No seas tan tonto, usa tu cerebro!
C2 noun /naɪˈdʒel.ə/

Nigella

comino negro
Meaning
small black seeds with a nutty, slightly bitter flavor, also known as black cumin or black seed
Example
Sprinkle nigella seeds on top of the bread before baking.
Espolvorea semillas de comino negro encima del pan antes de hornear.
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

técnica que utiliza actividades cerebrales en tiempo real para enseñar la autorregulación de la función cerebral
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.
El neurofeedback mejora el rendimiento cognitivo y la relajación.
C2 noun /njuːˈmɪzmətɪst/

numismatist

numismático
Meaning
A person who studies or collects coins, paper currency, and medals.
Example
The numismatist displayed his rare coin collection at the exhibition.
El numismático exhibió su rara colección de monedas en la exposición
C2 noun /ˈnoʊmənˌkleɪtʃər/

nomenclature

nomenclatura
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.
La nomenclatura química puede ser difícil para los principiantes de entender.
C2 noun /niːˈɒkrəsi/

neocracy

Gobierno dirigido por funcionarios inexpertos o nuevos
Meaning
A government or leadership run by inexperienced or new officials.
Example
The sudden revolution led to a neocracy with inexperienced leaders.
La repentina revolución dio lugar a una neocracia con líderes inexpertos.
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

no combatiente
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.
Los trabajadores de la Cruz Roja fueron tratados como no combatientes en el conflicto.
C2 noun /ˈnjuː.trɪ.mənt/

nutriment

nutrimento
Meaning
Something that nourishes; sustenance or food.
Example
The soil provides nutriment to the plants.
El suelo proporciona nutrimento a las plantas.
C2 noun /ˈnɒn.ɪʤ/

Nonage

minoría de edad
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.
Durante su minoría de edad, todas las decisiones legales fueron tomadas por su tutor.
C2 adjective /ˈnjuː.mər.ə.bəl/

Numerable

contable; numerable
Meaning
capable of being counted; countable
Example
The stars in the sky are not numerable.
Las estrellas en el cielo no son numerables.
C2 adjective ˌnjʊə.rəʊ.prəˈtek.tɪv

neuroprotective

neuroprotector
Meaning
Having the ability to protect nerve cells from damage, degeneration, or impaired function.
Example
Omega-3 fatty acids have neuroprotective benefits.
Los ácidos grasos omega-3 tienen beneficios neuroprotectores.
C2 noun /ˈnoʊzˌɡeɪ/

nosegay

ramillete de flores
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.
Ella llevaba un ramillete de rosas frescas a la ceremonia.
C2 noun /nəˈkrɒpəlɪs/

necropolis

necrópolis
Meaning
a large ancient cemetery with elaborate tombs
Example
The archaeologists discovered artifacts in the necropolis of the ancient city.
Los arqueólogos descubrieron artefactos en la necrópolis de la antigua ciudad.
C2 adjective /ˌnɒnpəˈreɪl/

nonpareil

inigualable
Meaning
Having no equal; unrivaled or matchless.
Example
Her beauty was considered nonpareil in the region.
Su belleza fue considerada inigualable en la región.
C2 noun /ˌɛn.biː.esˈpiː/

nbsp

espacio no rompible
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.
Usa   en HTML para agregar un espacio que no se rompa en una nueva línea.
C2 adjective /ˌnɒndɪˈskrɪpt/

nondescript

común
Meaning
Lacking distinctive or interesting features; dull and unremarkable.
Example
He lives in a nondescript apartment building on the edge of town.
Él vive en un edificio de apartamentos común en las afueras de la ciudad.
C2 verb /ˈnɔːzieɪt/

nauseate

provocar náuseas
Meaning
To make someone feel sick, with an inclination to vomit.
Example
The spoiled food nauseated him quickly.
La comida echada a perder lo nauseó rápidamente.
C2 noun /ˌniːoʊˈdɑːrwɪnɪzəm/

neo-darwinism

neodarwinismo
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.
El neodarwinismo combina la teoría de selección natural de Darwin con la genética moderna.
C2 adjective /ˈnɛtlˌsʌm/

nettlesome

irritante
Meaning
Causing irritation, annoyance, or difficulty.
Example
The nettlesome rules frustrated the workers.
Las reglas irritantes frustraron a los trabajadores.
C2 noun /ˈnʌnəri/

nunnery

convento
Meaning
A convent or building where nuns live and work.
Example
She decided to join the nunnery to devote her life to spiritual practice.
Decidió unirse al convento para dedicar su vida a la práctica espiritual.
C2 adjective /ˈnjuːbaɪl/

nubile

nublia
Meaning
of a young woman, sexually mature and suitable for marriage
Example
The village was celebrating the festival with its nubile maidens dancing.
El pueblo estaba celebrando el festival con sus nubias bailando.
C2 noun /nuːt/

Newt

tritón
Meaning
a small amphibian with a long tail that lives both in water and on land
Example
The newt swam gracefully in the pond.
El tritón nadó con gracia en el estanque.
C2 noun /ˌniːoʊˈlætɪn/

neo-latin

neo-latín
Meaning
The use of Latin language for scholarly, scientific, and literary purposes after the medieval period.
Example
Many scientific names are derived from Neo-Latin.
Muchos nombres científicos provienen del neo-latín.
C2 verb /ˌnɒnˈplʌst/

nonplussed

desconcertado
Meaning
Past tense of nonplus; surprised and unsure how to react.
Example
He stood nonplussed at the strange remark.
Se quedó desconcertado por el comentario extraño.
C2 adjective ˌnjʊəroʊˈkɒɡnɪtɪv

neurocognitive

neurocognitivo
Meaning
Related to brain information processing and memory power
Example
Neurocognitive functions decline due to lack of sleep.
Las funciones neurocognitivas disminuyen debido a la falta de sueño.
C2 noun /nɪmf/

Nymph

Ninfa
Meaning
a mythological spirit of nature; a beautiful young woman in classical mythology
Example
The water nymph appeared by the moonlit lake.
La ninfa del agua apareció junto al lago iluminado por la luna.
C2 noun /neɪv/

nave

nave central de la iglesia
Meaning
the central part of a church building intended to accommodate the congregation
Example
The choir sang beautifully in the church nave.
El coro cantó hermosamente en la nave de la iglesia.
C2 noun /nɪb/

nib

punta de la pluma
Meaning
the pointed end of a pen used for writing or drawing
Example
He dipped the nib into the ink before writing.
Él sumergió la punta de la pluma en la tinta antes de escribir.
C2 noun /ˌniːoʊˈpeɪɡənɪzəm/

neopaganism

neopaganismo
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.
El neopaganismo ha ganado popularidad a medida que las personas buscan alternativas espirituales a las religiones principales.
C2 adjective /ˈnɔɪ.səm/

Noisome

apestoso; dañino o desagradable
Meaning
having an extremely offensive smell; harmful or unpleasant
Example
The noisome smell from the garbage made everyone cover their noses.
El apestoso olor de la basura hizo que todos se taparan las narices.
C2 verb /ˈnɪtˌpɪk/

nitpick

criticar cosas pequeñas
Meaning
To find and criticize small or unimportant faults in someone or something.
Example
She tends to nitpick about every little detail.
Ella tiende a criticar cada pequeño detalle.
C2 adjective /njuːˈtoʊniən/

newtonian

relacionado con las leyes de Newton
Meaning
relating to the laws of motion and gravitation formulated by Sir Isaac Newton
Example
The scientist explained the Newtonian laws of motion.
El científico explicó las leyes de movimiento newtonianas.
C2 adjective /ˈnæti/

natty

elegante
Meaning
Neat, stylish, and fashionable in appearance.
Example
He looked very natty in his new suit.
Él lucía muy elegante con su nuevo traje.
C2 verb /ˌnɒnˈplʌst/

nonplused

perplejo
Meaning
Past tense of nonplus; surprised and confused.
Example
She was completely nonplused by his sudden decision.
Ella estaba completamente perpleja por su decisión repentina.
C2 noun /nɑːrˈsɪsəs/

narcissus

flor de narciso
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.
Un narciso floreció en el jardín durante la primavera.
C2 noun /ˌnɛɡlɪˈʒeɪ/

negligee

bata de seda ligera
Meaning
A woman's light dressing gown, often made of thin or silky material.
Example
She wore a silk negligee before going to bed.
Ella usaba una bata de seda antes de irse a la cama.
C2 adjective /ˈneb.jə.ləs/

Nebulous

vago; poco claro; nebuloso
Meaning
vague or unclear; lacking definite form; hazy
Example
His plans for the future remain nebulous and unclear.
Sus planes para el futuro siguen siendo nebulosos y poco claros.
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

numismático
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.
Él tiene una colección numismática de monedas raras de todo el mundo.
C2 adjective /ˈnjuː.trɪ.tɪv/

nutritive

nutritivo
Meaning
Relating to nutrition; having nourishing qualities.
Example
The nutritive value of the fruit is very high.
El valor nutritivo de la fruta es muy alto.
C2 adjective ˌnjʊə.rəʊ.saɪənˈtɪ.fɪk

neuroscientific

relacionado con la neurociencia
Meaning
Related to the scientific study of the brain and nervous system.
Example
Neuroscientific research helps understand memory retention.
La investigación neurocientífica ayuda a entender la retención de la memoria.
C2 noun /naɪt kwiːn/

Night queen

reina de la noche
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.
Las flores de la reina de la noche llenaron el jardín con su dulce fragancia.
C2 adjective /ˈnʌpʃəl/

nuptial

nupcial
Meaning
Relating to marriage or weddings.
Example
The couple prepared for their nuptial ceremony with great joy.
La pareja se preparó para su ceremonia nupcial con gran alegría.
C2 noun /ˌnjuːməˈreɪʃən/

numeration

numeración
Meaning
the action or process of counting or assigning numbers
Example
The teacher explained the basics of numeration to the students.
El maestro explicó los conceptos básicos de la numeración a los estudiantes.
C2 adjective /ˈneɪtl/

natal

relativo al nacimiento
Meaning
Relating to birth or the place of birth.
Example
She returned to her natal village after many years.
Ella regresó a su pueblo natal después de muchos años.
C2 adjective /ˈnjuːmɪnəs/

numinous

numinoso
Meaning
having a strong spiritual or mysterious quality
Example
The temple had a numinous atmosphere that inspired awe.
El templo tenía una atmósfera numinosa que inspiraba asombro.
C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

no trivial
Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
Resolver la ecuación resultó ser una tarea no trivial.
C2 noun /niːp/

neap

marea baja
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.
Durante una marea baja, el cambio en el nivel del agua es mínimo.
C2 noun /ˌnɒn ˈsɛkwɪtər/

non sequitur

comentario irrelevante
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.
Su comentario sobre el clima fue un completo comentario irrelevante durante la discusión del presupuesto.
C2 noun /ˌnjʊə.rəʊˈdʒɛn.ɪ.sɪs/

neurogenesis

formación de nuevas células nerviosas
Meaning
The process of forming new nerve cells in the brain.
Example
Scientists are studying neurogenesis to understand brain health.
Los científicos están estudiando la neurogénesis para comprender la salud cerebral.
C2 noun /nɛˈkroʊsɪs/

necrosis

necrósis
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.
El doctor explicó que la herida del paciente mostraba signos de necrosis.
C2 noun /nɪt/

nit

huevo de piojo
Meaning
The egg or young form of a louse or other parasitic insect.
Example
The teacher noticed nits in the child’s hair.
El maestro notó huevos de piojo en el cabello del niño.
C2 noun /ˈnes.lɪŋ/

Nestling

pichón
Meaning
a young bird that has not yet left its nest
Example
The mother bird fed the hungry nestling with worms.
La madre pájaro alimentó al hambriento pichón con gusanos.
C2 noun /ˈnɑːstrəm/

nostrum

medicina ineficaz
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.
El plan del político fue desestimado como un simple remedio para un problema complejo.
C2 verb /ˈnɪɡəl/

niggle

molestar levemente pero de forma persistente
Meaning
to cause slight but persistent annoyance, discomfort, or worry
Example
A small doubt niggled at her mind.
Una pequeña duda la molestaba en su mente.