sublime
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C1 adjective səˈblaɪm

sublime

sublime, magnifique, majestueux
Meaning
Of such excellence, grandeur, or beauty as to inspire great admiration or awe.
Example
The sublime beauty of the mountain landscape took my breath away.
La beauté sublime du paysage montagneux m'a coupé le souffle.
C1 verb /ˈskævɪndʒ/

scavenge

fouiller dans les ordures
Meaning
to search through waste or discarded material to find useful items
Example
The children scavenged for food in the garbage dump.
Les enfants ont fouillé dans les ordures pour trouver de la nourriture.
C1 adjective /ˈsʌlən/

sullen

maussade
Meaning
bad-tempered and gloomy; silently resentful
Example
She gave him a sullen look and walked away.
Elle lui lança un regard maussade et s'éloigna.
C1 verb/noun /ˈsɒldər/

solder

souder
Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
Il a soudé les fils cassés.
C1 adjective /səbˈvɜːrsɪv/

subversive

subversif
Meaning
seeking or intended to undermine or overthrow an established system or authority
Example
The group was banned for its subversive activities.
Le groupe a été interdit pour ses activités subversives.
C1 adjective /ˌsæŋktɪˈmoʊniəs/

sanctimonious

moraliste et hypocrite
Meaning
Making a show of being morally superior to others; hypocritically pious.
Example
He gave a sanctimonious speech about honesty while he himself was corrupt.
Il a fait un discours moraliste sur l'honnêteté alors qu'il était lui-même corrompu.
C1 verb /ˈsaɪdˌstɛp/

sidestep

éviter
Meaning
To avoid something by stepping aside; to evade a problem or question indirectly.
Example
The politician tried to sidestep the difficult question.
Le politicien a essayé d'éviter la question difficile.
C1 noun /ˌsʌb.stɪˈtjuː.ʃən/

substitution

substitution
Meaning
the action of replacing someone or something with another
Example
The substitution of the old system with the new one was difficult.
La substitution de l'ancien système par le nouveau a été difficile.
C1 verb sɪˈkwɛstər

sequester

isoler, cacher
Meaning
To isolate or hide away.
Example
The carbon captured by trees can be sequestered for years.
Le carbone capturé par les arbres peut être isolé pendant des années.
C1 noun /stɪnt/

stint

période temporaire
Meaning
a period of time spent doing a particular job or activity
Example
She did a short stint as a teacher before moving abroad.
Elle a fait un court passage en tant qu'enseignante avant de partir à l'étranger.
C1 adjective /ˈstɔːlwərt/

stalwart

fidèle, robuste
Meaning
Loyal, reliable, and hardworking; strongly built or sturdy.
Example
She has always been a stalwart supporter of the community.
Elle a toujours été une fidèle partisane de la communauté.
C1 adjective /swɑːv/

suave

charmant et raffiné
Meaning
charming, confident, and elegant, often in a smooth or polished way
Example
He was a suave gentleman who impressed everyone at the party.
Il était un homme raffiné qui a impressionné tout le monde à la fête.
C1 noun /səˈprɑːnoʊ/

soprano

la voix féminine ou enfantine la plus haute
Meaning
the highest female or boy’s singing voice
Example
She sang beautifully in the soprano range during the concert.
Elle a chanté magnifiquement dans la gamme soprano pendant le concert.
C1 adjective /ˈsɔːsi/

saucy

effronté
Meaning
Boldly rude, cheeky, or playfully disrespectful.
Example
The child gave a saucy reply to his teacher.
L'enfant a donné une réponse effrontée à son professeur.
C1 verb /səˈfɪstɪkeɪt/

sophisticate

sophistiquer
Meaning
to make something more complex or refined; to educate or develop in taste and manners
Example
Traveling abroad helped sophisticate his worldview.
Voyager à l'étranger a aidé à sophistiquer sa vision du monde.
C1 adjective /ˈʃeɪm.ləs/

Shameless

impudique
Meaning
having no shame; bold and rude; impudent
Example
The shameless politician refused to apologize for his mistakes.
Le politicien sans honte a refusé de s'excuser pour ses erreurs.
C1 noun /stents/

stents

stents
Meaning
Small mesh tubes used to treat narrow or blocked arteries.
Example
Stents were successfully placed using robotic techniques.
Les stents ont été placés avec succès en utilisant des techniques robotiques.
C1 noun /ˈstɪɡmə/

stigma

stigmatisme
Meaning
a mark of shame or disgrace associated with a particular circumstance or quality
Example
There is still a stigma around mental health issues in many societies.
Il existe encore un stigmate autour des problèmes de santé mentale dans de nombreuses sociétés.
C1 adjective ˈsek.tər spəˈsɪf.ɪk

sector-specific

sectoriel
Meaning
Relating to or designed for a particular sector or industry.
Example
Sector-specific policies attract targeted investments.
Les politiques sectorielles attirent les investissements ciblés.
C1 verb /ˈstrætɪfaɪ/

stratify

stratifier
Meaning
to arrange or divide into layers, classes, or categories
Example
The researchers plan to stratify the data based on age groups.
Les chercheurs prévoient de stratifier les données en fonction des groupes d'âge.
C1 noun ˌskeɪ.ləˈbɪl.ə.ti

scalability

extensibilité
Meaning
The capacity to be changed in size or scale; the ability of a system to handle a growing amount of work.
Example
The new software offers high scalability for large enterprises.
Le nouveau logiciel offre une grande extensibilité pour les grandes entreprises.
C1 noun /sɪˈtɑːr/

Sitar

sitar
Meaning
a traditional Indian stringed musical instrument with a long neck and resonating body
Example
The sitar creates beautiful ragas in Indian classical music.
Le sitar crée de magnifiques ragas dans la musique classique indienne.
C1 noun /sɪlk klɔːθ/

Silk cloth

tissu en soie
Meaning
fabric made from natural fibers produced by silkworms
Example
The bride wore a beautiful dress made of silk cloth.
La mariée portait une belle robe faite de tissu en soie.
C1 noun /ʃeɪl/

shale

schiste
Meaning
a fine-grained sedimentary rock that can be split into thin layers
Example
The region is rich in shale and natural gas deposits.
La région est riche en schiste et en dépôts de gaz naturel.
C1 verb /smɪr/

smear

étaler / diffamer
Meaning
to spread or apply a substance messily; to damage someone's reputation with false or unfair words
Example
The child smeared paint across the wall.
L'enfant a étalé de la peinture sur le mur.
C1 adjective /ˈsaɪz.mɪk/

seismic

sismique
Meaning
Relating to earthquakes or vibrations of the earth and its crust.
Example
The region is known for its seismic activity.
La région est connue pour son activité sismique.
C1 noun /ˈstæl.i.ən/

stallion

étalon pour la reproduction
Meaning
An adult male horse that is not castrated, often used for breeding.
Example
The farm owns a powerful stallion for breeding purposes.
La ferme possède un puissant étalon pour la reproduction.
C1 verb /sɪˈkriːt/

secrete

sécréter
Meaning
to produce and release a substance from a cell, gland, or organ
Example
The pancreas secretes insulin to regulate blood sugar levels.
Le pancréas sécrète de l'insuline pour réguler le taux de sucre dans le sang.
C1 verb/noun /skaʊl/

scowl

froncer les sourcils
Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
Elle fronça les sourcils quand elle entendit la remarque injuste.
C1 verb /skʌlpt/

sculpt

bonheur
Meaning
to create or shape something by carving or molding
Example
The artist sculpted a beautiful statue from marble.
Elle ne pouvait pas cacher sa joie lorsqu'elle a reçu le prix.
C1 noun səˈsteɪnəbəl ˈpræktɪsɪz

sustainable practices

pratiques durables
Meaning
Methods and activities that can be maintained over time without depleting natural resources or harming the environment.
Example
Sustainable practices are vital for environmental preservation.
Les pratiques durables sont essentielles pour la préservation de l'environnement.
C1 noun /ˈsteɪ.ʃən.ər/

Stationer

papetier
Meaning
a person who sells paper, pens, pencils, and other office supplies
Example
The stationer recommended the best pens for writing exams.
Le stationnaire a recommandé les meilleurs stylos pour les examens.
C1 verb /struː/

strew

répandre
Meaning
to scatter or spread things untidily over a surface or area
Example
Clothes were strewn across the floor.
Les vêtements étaient éparpillés sur le sol.
C1 noun /səbˈvɜːrʒən/

subversion

subversion
Meaning
the act of trying to destroy or undermine an established system or authority
Example
The government accused the rebels of planning subversion.
Le gouvernement a accusé les rebelles de planifier une subversion.
C1 noun /ˈstændˌstɪl/

standstill

immobilité
Meaning
a situation in which all movement or activity stops
Example
The traffic came to a standstill after the accident.
Le trafic est arrivé à une immobilité après l'accident.
C1 adjective /ˈskrʌfi/

Scruffy

démodé ou en désordre dans son apparence; sale et usé
Meaning
untidy or unkempt in appearance; shabby and worn
Example
The scruffy old dog wandered through the streets looking for food.
Le chien sale se promenait dans les rues à la recherche de nourriture.
C1 noun /ˈsɛntɪnəl/

sentinel

sentinelle
Meaning
A soldier or guard whose job is to stand and keep watch.
Example
A sentinel stood at the entrance of the camp.
Un sentinelle se tenait à l'entrée du camp.
C1 verb /ˈstaɪmi/

stymie

entraver
Meaning
to prevent or hinder the progress of something
Example
The new regulations could stymie small businesses.
Les nouvelles régulations pourraient freiner les petites entreprises.
C1 noun /ˈsteɪtəs kwoʊ/

status quo

statu quo
Meaning
The existing state of affairs, especially regarding social or political issues.
Example
The government decided to maintain the status quo until further review.
Le gouvernement a décidé de maintenir le statu quo jusqu'à un examen ultérieur.
C1 adjective /snaɪd/

snide

moqueur
Meaning
mocking or insulting in an indirect way
Example
He couldn’t resist making a snide comment about her dress.
Il ne pouvait s'empêcher de faire un commentaire moqueur sur sa robe.
C1 adjective /ˈsɜːrli/

surly

grognon
Meaning
bad-tempered and unfriendly
Example
The waiter gave us a surly look when we asked for more water.
Le serveur nous a lancé un regard grognon lorsque nous avons demandé plus d'eau.
C1 verb /səbˈmɜːrdʒ/

submerge

submerger
Meaning
to put under water or cover with liquid
Example
The floodwaters threatened to submerge the village.
Les eaux de l'inondation menaçaient de submerger le village.
C1 adjective /ˈsɜːrvɪsəbl/

serviceable

utilisable
Meaning
fit for use; usable; in working order
Example
The old bicycle is still serviceable despite its age.
Le vieux vélo est encore utilisable malgré son âge.
C1 verb, noun /spraʊt/

sprout

germer
Meaning
to begin to grow; to produce new leaves or shoots
Example
The seeds began to sprout after a few days of rain.
Les graines ont commencé à germer après quelques jours de pluie.
C1 adjective /ˈspɪndli/

spindly

mince et fragile
Meaning
Long, thin, and weak-looking
Example
The spindly tree bent under the weight of the snow.
L'arbre mince s'est penché sous le poids de la neige.
C1 noun /stɪˈlɛtoʊ/

stiletto

chaussure à talon aigu / poignard
Meaning
A small, thin, high-heeled shoe or a dagger with a slender blade.
Example
She wore elegant stiletto heels to the party.
Elle portait des talons stiletto élégants à la fête.
C1 noun /ˈsɔːl.tɪd fɪʃ/

Salted fish

poisson salé
Meaning
fish preserved with salt; dried and salted fish for storage
Example
Salted fish is a traditional way to preserve seafood.
Le poisson salé est une méthode traditionnelle pour conserver les fruits de mer.
C1 adjective /ˈseɪlaɪn/

Saline

salé; lié à l'eau salée
Meaning
containing salt; salty; relating to salt water
Example
The saline solution is used for medical treatments.
La solution saline est utilisée pour les traitements médicaux.
C1 adjective /səˈdʒɛstɪv/

suggestive

suggestif
Meaning
tending to suggest ideas or images; sometimes implies something sexual or provocative
Example
The painting was highly suggestive and sparked much debate.
Le tableau était très suggestif et a provoqué beaucoup de débats.
C1 adjective /ˈsɛnʃuəl/

sensual

sensuel
Meaning
Relating to or involving gratification of the senses and physical pleasure.
Example
The painting had a sensual quality that captivated viewers.
La peinture avait une qualité sensuelle qui captivait les spectateurs.
C1 noun ˈstræt.ə.sfɪər

stratosphere

stratosphère
Meaning
The layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface.
Example
The stratosphere provides a unique environment.
La stratosphère offre un environnement unique.
C1 verb /ˈsætʃəˌreɪt/

saturate

saturer
Meaning
to fill completely with something until no more can be absorbed
Example
The heavy rain saturated the ground within minutes.
La forte pluie a saturé le sol en quelques minutes.
C1 verb /ˈsɔːntər/

saunter

se promener lentement
Meaning
to walk in a slow, relaxed manner without hurry or effort
Example
We sauntered along the riverside, stopping now and then to watch the boats.
Nous avons flâné le long de la rivière, nous arrêtant de temps en temps pour observer les bateaux.
C1 verb /siːð/

seethe

bouillir de colère
Meaning
To be filled with intense but unexpressed anger or agitation.
Example
She was seething with anger after the unfair decision.
Elle bouillait de colère après la décision injuste.
C1 verb /spɜːrn/

spurn

rejeter avec dédain
Meaning
To reject something or someone with disdain or contempt.
Example
She spurned his offer of help.
Elle a rejeté son offre d'aide avec mépris.
C1 noun, verb /spreɪn/

sprain

entorse
Meaning
an injury to a joint in which the ligaments are stretched or torn
Example
She sprained her ankle while running in the park.
Elle s'est foulé la cheville en courant dans le parc.
C1 adjective ˌsɪmbɪˈɒtɪk

symbiotic

symbiotique
Meaning
Involving interaction between two different organisms living in close physical association.
Example
The relationship between the bee and the flower is symbiotic.
La relation entre l'abeille et la fleur est symbiotique.
C1 noun /sɔɪl ˈmæn.ɪdʒ.mənt/

soil management

gestion des sols
Meaning
The application of operations, practices, and treatments to protect soil and enhance its performance.
Example
Proper soil management improves long-term agricultural productivity.
Une gestion appropriée des sols améliore la productivité agricole à long terme.
C1 noun /ˌsɪmbɪˈəʊsɪs/

symbiosis

relation symbiotique
Meaning
A mutually beneficial relationship between different people or groups.
Example
The symbiosis between the two companies led to mutual growth.
La symbiose entre les deux entreprises a conduit à une croissance mutuelle.
C1 noun /spɛk/

speck

tache
Meaning
A very small spot, mark, or particle.
Example
There was a tiny speck of dust on the glass table.
Il y avait une petite tache de poussière sur la table en verre.
C1 verb /ˈseɪ.vər/

savor

savourer pleinement
Meaning
To enjoy something completely, especially by dwelling on it.
Example
He savored every bite of the delicious cake.
Il savoura chaque bouchée du délicieux gâteau.
C1 noun /ˈsɪmətri/

symmetry

symétrie
Meaning
the quality of having balanced proportions or identical parts facing each other
Example
The building’s symmetry impressed the visitors.
La symétrie du bâtiment a impressionné les visiteurs.
C1 adjective /ˈstoʊɪk/

stoic

stoïque, implacable
Meaning
Showing little or no emotion, even in difficult situations.
Example
She remained stoic during the crisis, never showing fear or panic.
Elle est restée stoïque pendant la crise, sans montrer de peur ni de panique.
C1 noun /ˈskævɪndʒər/

scavenger

charognard / collecteur de déchets
Meaning
an animal or person that feeds on dead or discarded material
Example
Vultures are natural scavengers that clean up the environment.
Les vautours sont des scavengers naturels qui nettoient l'environnement.
C1 adjective, verb /sɪˈdeɪt/

sedate

sédater
Meaning
calm, quiet, and composed; or to administer a drug to make someone calm or sleep
Example
The nurse sedated the patient before the operation.
L'infirmière a sédaté le patient avant l'opération.
C1 noun/verb /smʌdʒ/

smudge

tache, marque sale
Meaning
a dirty mark or smear; to make something dirty or unclear by rubbing or touching
Example
She accidentally smudged her lipstick on the napkin.
Elle a accidentellement étalé son rouge à lèvres sur la serviette.
C1 noun /ˈsɒl.ɪs/

Solace

réconfort
Meaning
comfort or consolation in a time of distress or sadness
Example
She found solace in music after her loss.
Elle a trouvé du réconfort dans la musique après sa perte.
C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

sacré
Meaning
Regarded as too important or valuable to be interfered with; sacred.
Example
Freedom of speech is considered sacrosanct in democratic societies.
La liberté d'expression est considérée comme sacrée dans les sociétés démocratiques.
C1 adjective /ˈseɪ.vər.i/

savory

savoureux (salé ou épicé)
Meaning
Having a pleasant salty or spicy taste; morally acceptable.
Example
The restaurant serves a variety of savory dishes.
Le restaurant sert une variété de plats savoureux.
C1 adjective /ˈsʌltri/

sultry

chaud et humide, attrayant
Meaning
Uncomfortably hot and humid; also describes someone attractive in a passionate or sensual way.
Example
The sultry weather made it hard to focus on work.
Le temps chaud et humide rendait difficile de se concentrer sur le travail.
C1 verb /səbˈsaɪd/

subside

diminuer
Meaning
to become less intense, violent, or severe; to sink or fall to a lower level
Example
After the storm, the floodwaters began to subside.
Après la tempête, les eaux de l'inondation ont commencé à diminuer.
C1 verb /ˈsælvɪdʒ/

salvage

sauver
Meaning
To save something from loss, damage, or destruction.
Example
They managed to salvage some goods from the fire.
Ils ont réussi à sauver des biens du feu.
C1 noun /ˈskaɪ.lɑːrk/

Sky-Lark

alouette
Meaning
a small brown bird known for singing while flying high in the sky
Example
The skylark sang beautifully as it soared above the meadow.
L'alouette chanta magnifiquement pendant qu'elle s'élevait au-dessus du pré.
C1 adjective /ˌsɛm.iˈæn.ju.əl/

semiannual

semi-annuel
Meaning
Occurring twice a year; every six months.
Example
The company holds a semiannual meeting with all employees.
L'entreprise organise une réunion semi-annuelle avec tous les employés.
C1 noun /səˈnɑːtə/

sonata

composition musicale (sonate)
Meaning
A musical composition for one or more instruments, typically in several movements.
Example
She performed a beautiful Beethoven sonata on the piano.
Elle a joué une magnifique sonate de Beethoven au piano.
C1 adjective /ˈsɪnjuəs/

sinuous

sinueux
Meaning
Having many curves, bends, or turns; winding.
Example
The hikers followed a sinuous path through the forest.
Les randonneurs ont suivi un chemin sinueux à travers la forêt.
C1 noun /skɪt/

skit

sketch
Meaning
a short, humorous performance or piece of writing
Example
The students performed a funny skit at the event.
Les étudiants ont joué un sketch drôle lors de l'événement.
C1 adjective /stiːpt/

steeped

imprégné
Meaning
Completely surrounded by or filled with a particular quality, influence, or experience.
Example
The town is steeped in history and tradition.
La ville est imprégnée d'histoire et de tradition.
C1 noun /ˈspɛkjʊˌleɪtər/

speculator

spéculateur
Meaning
A person who forms theories without evidence, or invests in assets hoping for profit.
Example
The real estate speculator bought land hoping its value would rise.
Le spéculateur immobilier a acheté des terres en espérant que leur valeur augmenterait.
C1 noun /ˈsɪləbəl/

syllable

syllabe
Meaning
A unit of pronunciation having one vowel sound, with or without surrounding consonants, forming the whole or part of a word.
Example
The word 'computer' has three syllables.
Le mot 'ordinateur' a trois syllabes.
C1 noun /ˈsɑːri/

Saree

sari
Meaning
a garment consisting of a length of cotton or silk elaborately draped around the body, traditionally worn by women from South Asia
Example
She looked elegant in her red silk saree at the festival.
Elle avait l'air élégante dans son sari en soie rouge lors du festival.
C1 verb/noun /skɒtʃ/

scotch

mettre fin à / whisky écossais
Meaning
to put an end to something; also a type of whisky
Example
The report scotched the rumors of a merger.
Le rapport a mis fin aux rumeurs de fusion.
C1 noun /ˈsʌn.stroʊk/

Sunstroke

coup de chaleur
Meaning
a serious condition caused by overheating from prolonged exposure to high temperatures
Example
The worker suffered from sunstroke after working outside all day.
Le travailleur a souffert d'un coup de chaleur après avoir travaillé dehors toute la journée.
C1 noun /ˈsæŋk.ʃən/

Sanction

sanction
Meaning
official permission or approval; a penalty for disobeying a rule
Example
The government imposed economic sanctions on the country.
Le gouvernement a imposé des sanctions économiques au pays.
C1 noun /səˈlaɪ.və/

Saliva

salive
Meaning
the watery liquid secreted into the mouth by glands
Example
The dentist asked her to rinse the saliva from her mouth.
Le dentiste lui a demandé de rincer la salive de sa bouche.
C1 noun /ˈsɛvərəns/

severance

indemnité de licenciement
Meaning
the act of ending something, especially a relationship or employment; compensation paid upon termination
Example
The company offered him severance pay after his job ended.
L'entreprise lui a offert une indemnité de licenciement après la fin de son emploi.
C1 noun /səˈbraɪəti/

sobriety

sobriété
Meaning
the state of being sober; self-restraint and seriousness
Example
He has maintained his sobriety for five years.
Il a maintenu sa sobriété pendant cinq ans.
C1 noun /ˈseɪ.tən/

Satan

Satan
Meaning
the chief evil spirit; the Devil in Christian and Islamic belief
Example
According to religious texts, Satan tempts people to sin.
Selon les textes religieux, Satan tente les gens de pécher.
C1 adjective /ˈsiː.naɪl/

senile

faiblesse liée à la vieillesse
Meaning
Showing the weaknesses of old age, especially mental decline.
Example
The old man became senile and forgot familiar faces.
Le vieil homme est devenu sénile et a oublié des visages familiers.
C1 adjective /ˈʃɑːdi/

shoddy

de mauvaise qualité
Meaning
badly made or done; of poor quality
Example
The contractor did a shoddy job on the repairs.
L'entrepreneur a fait un travail de mauvaise qualité lors des réparations.
C1 noun /ˌsæbəˈtɜːr/

saboteur

saboteur
Meaning
A person who engages in sabotage.
Example
The saboteur was arrested before he could plant the bomb.
Le saboteur a été arrêté avant qu'il ne puisse planter la bombe.
C1 noun /slæb/

slab

dalle
Meaning
a large, thick, flat piece of stone, concrete, or other hard material
Example
The workers laid a concrete slab for the foundation.
Les ouvriers ont posé une dalle de béton pour la fondation.
C1 verb /ˈskwɒbəl/

squabble

se disputer bruyamment pour quelque chose de trivial
Meaning
To argue noisily over something small or unimportant.
Example
The children squabbled over the last piece of cake.
Les enfants se disputaient pour le dernier morceau de gâteau.
C1 adjective /sliːk/

sleek

élégant et brillant
Meaning
smooth, shiny, and stylish
Example
She drove a sleek black sports car.
Elle a conduit une voiture de sport brillante et élégante.
C1 adjective /səkˈsɪŋkt/

succinct

concis
Meaning
Briefly and clearly expressed; characterized by clear, precise expression in few words.
Example
His speech was succinct and impactful.
Son discours était concis et percutant.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Sommet du futur
Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
Le Sommet du Futur a abordé les défis mondiaux.
C1 noun /səˈprɛʃən/

suppression

suppression
Meaning
the act of forcibly stopping something or holding back feelings or actions
Example
The suppression of free speech led to protests.
La suppression de la liberté d'expression a conduit à des manifestations.
C1 adjective /ˈstɪltɪd/

stilted

artificiel, forcé
Meaning
Speech or writing that is stiff, unnatural, or overly formal.
Example
His speech sounded stilted and rehearsed.
Son discours semblait forcé et préparé.
C1 noun /ˌsʌpəˈzɪʃən/

supposition

supposition
Meaning
An assumption or belief that something is true without certain proof.
Example
His plan was based on the supposition that the market would recover quickly.
Son plan était basé sur la supposition que le marché se rétablirait rapidement.
C1 adjective /ˈsted.fæst/

Steadfast

ferme; déterminé; inébranlable
Meaning
firm in belief, determination, or adherence; unwavering
Example
She remained steadfast in her commitment to helping the poor.
Elle est restée ferme dans son engagement à aider les pauvres.
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

chanceux et inattendu
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
Leur rencontre au café était totalement chanceuse.
C1 adjective /ˈskɛtʃi/

sketchy

incomplet
Meaning
not thorough or detailed; suspicious or unsafe
Example
The details of the project were still sketchy.
Les détails du projet étaient encore incomplets.
C1 noun /ʃoʊl/

shoal

école de poissons
Meaning
a large group of fish swimming together; a shallow place in water
Example
We saw a shoal of fish near the coast.
Nous avons vu une école de poissons près de la côte.
C1 adverb /ˈsɜːrtʃɪŋli/

searchingly

scrutatoirement
Meaning
In a way that seems to look for hidden meanings or truth.
Example
She looked at him searchingly, hoping for an honest answer.
Elle le regarda d'un œil scrutateur, espérant une réponse honnête.
C1 noun /ˈʃʊɡ.ər ˈkæn.di/

Sugar candy

bonbon de sucre
Meaning
crystallized sugar formed into small pieces; rock candy made from sugar syrup
Example
The children enjoyed eating colorful sugar candy at the festival.
Les enfants ont adoré manger des bonbons sucrés colorés lors du festival.
C1 adjective /ˈsɜːrpənˌtiːn/

serpentine

serpentin
Meaning
Having the shape, movement, or qualities of a serpent; winding or twisting.
Example
The road took a serpentine path through the mountains.
La route suivait un chemin serpentin à travers les montagnes.
C1 adjective ˈsɛd(ə)ntəri

sedentary

sédentaire
Meaning
Characterized by much sitting and little physical activity.
Example
A sedentary lifestyle can lead to numerous health problems.
Un mode de vie sédentaire peut entraîner de nombreux problèmes de santé.
C1 verb /səbˈstænʃieɪt/

substantiate

substantier
Meaning
To provide evidence to support or prove the truth of something.
Example
The lawyer worked to substantiate the claims with solid evidence.
L'avocat a travaillé pour substancier les affirmations avec des preuves solides.
C1 verb /ʃʌnt/

shunt

détourner
Meaning
to move or turn aside; to push or divert from one track to another
Example
The train was shunted onto a different track.
Le train a été dévié sur une autre voie.
C1 verb /ˈstriːmlaɪnɪŋ/

streamlining

rationalisation
Meaning
The process of making an organization or system more efficient by simplifying or eliminating unnecessary steps
Example
Streamlining processes can significantly reduce operational costs.
La rationalisation des processus peut réduire considérablement les coûts opérationnels.
C1 noun /sɪv/

sieve

passoire
Meaning
a utensil with a mesh or perforated bottom, used for straining or sifting
Example
She used a sieve to strain the pasta.
Elle a utilisé une passoire pour filtrer les pâtes.
C1 adjective /ˈsliːzi/

sleazy

bas, sale ou de mauvaise qualité
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
Il a évité le club de nuit sordide en centre-ville.
C1 verb /ˈʃækəl/

shackle

chaîner
Meaning
to chain or restrain; to restrict someone’s actions or freedom
Example
Outdated regulations shackle small businesses and slow innovation.
Les anciennes régulations enchaînent les petites entreprises et ralentissent l'innovation.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

plus rapide que la vitesse du son; lié aux vitesses supérieures à celle du son
Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
Le jet supersonique a franchi le mur du son.
C1 noun /səˈrɛn.ɪ.ti/

serenity

sérénité
Meaning
The state of being calm, peaceful, and untroubled.
Example
Meditation helps in achieving inner serenity.
La méditation aide à atteindre la sérénité intérieure.
C1 noun ˈsɪmbəlɪzəm

symbolism

symbolisme
Meaning
The use of symbols to represent ideas or qualities.
Example
The use of symbolism in the novel is masterful.
L'utilisation du symbolisme dans le roman est magistrale.
C1 adjective /səˈriːn/

serene

serein et paisible
Meaning
Calm, peaceful, and untroubled; tranquil.
Example
The lake had a serene and peaceful atmosphere.
Le lac avait une atmosphère sereine et paisible.
C1 noun /səˈlɪn.ə.t̬i/

salinity

salinité, concentration de sel
Meaning
The salt content of soil or water, typically measured as a concentration.
Example
The salinity of the ocean varies depending on depth and location.
La salinité de l'océan varie en fonction de la profondeur et de la localisation.
C1 noun /ˈʃrɪŋkɪdʒ/

shrinkage

rétrécissement
Meaning
The process of becoming smaller in size, amount, or value.
Example
The company reported a shrinkage in profits this quarter.
L'entreprise a rapporté une diminution des profits ce trimestre.
C1 noun /ˈsɜːrtʃɑːrdʒ/

surcharge

supplément
Meaning
an additional charge or payment added to the usual cost
Example
The airline ticket had a fuel surcharge added to it.
Le billet d'avion avait un supplément carburant ajouté.
C1 noun /stɛntʃ/

stench

puanteur
Meaning
A very strong and unpleasant smell.
Example
The stench of garbage filled the alley.
La puanteur des ordures remplit la ruelle.