CEFR Level
to make something easier to understand or do
"The teacher simplified the lesson for the younger students."
the imitation of a situation or process
"The simulation helped the students understand the complex theory."
occurring, operating, or done at the same time
"The two singers gave simultaneous performances in different cities."
occurring or done at the same time
"The two speakers began talking simultaneously."
the quality of being free from pretense or deceit; honesty
"His sincerity in apologizing was evident to everyone."
Remarkable, extraordinary; or grammatical form referring to one person or thing.
"She has a singular talent for painting."
Giving the impression that something harmful or evil is happening or will happen.
"The abandoned house had a sinister atmosphere."
A device that makes a loud prolonged sound as a signal or warning; in mythology, a creature that lures sailors with enchanting songs.
"The police car passed with its siren blaring."
located in a particular place or position
"The hotel is situated near the beach."
The internal framework of bones that supports the body of a human or animal.
"The teacher showed the students a human skeleton in the biology class."
not easily convinced; having doubts or reservations
"She was skeptical about the new plan."
a simple, rough drawing or outline
"He made a quick sketch of the landscape."
in a way that shows ability and training; expertly
"She skilfully painted the portrait in just two hours."
to move quickly over a surface or to read something quickly
"She skimmed through the report before the meeting."
very thin; having little flesh or fat on the body
"The skinny cat looked like it hadn't eaten for days."
the bony structure that forms the head and protects the brain
"The archaeologists found an ancient human skull."
a very tall building of many stories
"The new skyscraper dominates the city's skyline."
not tight, firm, or busy; lacking tension or activity
"Business is slack during the rainy season."
to close or hit something with great force
"He slammed the door angrily after the argument."
very informal language that is usually spoken rather than written
"The teenagers used slang that their parents couldn't understand."
A particular point of view; to slope or lean in a particular direction.
"The article had a political slant."
To hit someone or something with the palm of the hand.
"He slapped the table in anger."
to cut or strike with a sharp object
"The cat slashed at the intruder with its claws."
the killing of animals for food; killing in large numbers violently
"The army slaughtered hundreds of enemy soldiers."
a vehicle for traveling over snow, often pulled by animals
"The children rode a sledge down the snowy hill."
Lack of adequate sleep, which has negative effects on physical and mental health
"Sleep deprivation leads to cognitive decline and fatigue."
a person or thing that sleeps; something that unexpectedly succeeds
"The movie turned out to be a real sleeper hit."
the part of a garment that covers all or part of the arm
"He rolled up his sleeves before starting the work."
Smooth, clever, or efficient, often in a way that seems superficial.
"He gave a slick presentation to impress the investors."
thin in an attractive or healthy way; small in amount or chance
"She looked slim in her new dress."
difficult to hold, walk on, or deal with because of being smooth, wet, or tricky
"The road was slippery after the rain."
a surface of which one end or side is at a higher level than another; a slanting surface or line
"The children rolled down the grassy slope."
Careless, messy, or lacking attention to detail.
"His sloppy handwriting made the note hard to read."
a narrow opening into which something fits or is placed
"Insert the card into the slot to open the door."
Lacking energy or alertness; slow-moving or inactive.
"He felt sluggish after eating a heavy meal."
a poor urban area with substandard housing and squalid conditions
"The government is working to improve conditions in the slum."
Clever in a deceitful or cunning way.
"She gave him a sly smile."
Minor actions or initiatives that can collectively make a significant impact.
"Small efforts can bring big changes in butterfly conservation."
in a clever or intelligent way; neatly and stylishly; quickly
"He was smartly dressed for the business meeting."
intelligence; cleverness; neat and fashionable appearance
"Her smartness in solving problems impressed everyone."
to break something into pieces violently
"She smashed the glass in frustration."
without problems or difficulties; in an even and regular way
"The car runs smoothly on the new highway."
a small soft creature with a shell on its back that moves very slowly
"The snail left a shiny trail as it crawled across the leaf."
to break or cause to break with a sudden sharp cracking sound
"She snapped the pencil in half."
