Vocabulary Cards C1
138 cards available.
C1 noun
Onset
начало; старт
Meaning
the beginning or early stages of something; the start of a medical condition
Example
The onset of winter brought heavy snowfall.
C1 noun
onslaught
наступление
Meaning
A fierce or destructive attack.
Example
The village faced an onslaught of enemy forces.
C1 noun
onus
ответственность
Meaning
A duty or responsibility, especially a heavy one.
Example
The onus is on the government to provide relief to the victims.
C1 verb
ooze
просачиваться
Meaning
to slowly flow or leak out through small openings or pores
Example
Blood began to ooze from the small cut.
C1 adjective
opaque
непрозрачный, непроходимый, трудный для понимания
Meaning
Not able to be seen through; not transparent; difficult to understand.
Example
The glass was too opaque to see through.
C1 adjective
Operative
активный; в действии; работающий; оперативный;
Meaning
Functioning; in effect; working; active;
Example
The new safety protocols became operative immediately after the accident.
C1 adjective
opportune
удобный момент
Meaning
Happening at a suitable or convenient time.
Example
She arrived at an opportune moment to help.
C1 noun
opportunist
оппортунист
Meaning
A person who takes advantage of situations for personal gain, often disregarding principles.
Example
He is seen as an opportunist who always puts his interests first.
C1 verb
oppress
угнетать
Meaning
to keep someone down by harsh and unfair use of authority; to suppress
Example
The dictator oppressed the people for decades.
C1 noun
Oppression
угнетение; насилие; тирания;
Meaning
cruel or unjust treatment or exercise of authority; the state of being subject to harsh treatment
Example
The people fought against political oppression.
C1 adjective
Oppressive
угнетающий
Meaning
Harsh and authoritarian; overwhelming; causing distress; tyrannical;
Example
The oppressive heat made it difficult to work outside during the summer.
C1 adjective
optic
оптический
Meaning
Relating to the eye or vision.
Example
The optic nerve carries signals from the eye to the brain.
C1 adjective
optical
оптический
Meaning
related to or used in seeing or sight
Example
The optical illusion fooled everyone at the exhibition.
C1 noun
optics
оптика
Meaning
The branch of physics dealing with light and vision.
Example
She studied optics to understand how lenses work.
C1 adverb
optimally
оптимально
Meaning
In the most effective or efficient way possible.
Example
Tasks should be allocated optimally for maximum output.
C1 noun
optimization
оптимизация
Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
C1 verb
optimize
оптимизировать
Meaning
To make the best or most effective use of a situation, opportunity, or resource.
Example
The company is working to optimize its supply chain.
C1 adjective
optimized
оптимизировано, улучшено, эффективнее
Meaning
Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.
Example
The system has been optimized for faster performance.
C1 adjective
optimum
оптимальный
Meaning
Most conducive to a favorable outcome; best.
Example
To achieve optimum results, we need to improve efficiency.
C1 noun
optometrist
оптометрист
Meaning
A healthcare professional who examines eyes and prescribes corrective lenses.
Example
The optometrist prescribed new glasses for her.
C1 noun
optometry
оптометрия
Meaning
The practice or profession of examining the eyes and prescribing corrective lenses.
Example
She studied optometry at the university to become an eye specialist.
C1 noun
Oracle
оракул
Meaning
a person regarded as a source of wise counsel; in ancient times, a priest or priestess acting as a medium
Example
The ancient Greeks consulted the oracle at Delphi.
C1 noun
Orator
оратор
Meaning
a public speaker, especially one who is eloquent or skilled in speaking
Example
The famous orator delivered an inspiring speech.
C1 noun
oratory
ораторское искусство
Meaning
The art of public speaking; skilled and confident delivery of speeches to an audience.
Example
His exceptional oratory skills won him the debate competition.