Vocabulary Cards
441 cards available.
B2 adverb
Openly
Meaning
in a frank and honest way; without concealment; publicly
Example
She spoke openly about her struggles with mental health.
A2 noun
opera
Meaning
a dramatic performance in which the actors sing most of their lines
Example
We watched a beautiful opera at the theater last night.
B1 verb
operate
Meaning
to function; to control or manage; to perform surgery
Example
The surgeon will operate on the patient tomorrow.
B1 verb
operating
Meaning
to control or manage the functioning of something
Example
The company has been operating in this market for five years.
B1 noun
operation
Meaning
an act or process of functioning or operating
Example
The hospital performed a successful operation.
B2 adjective
operational
Meaning
In working order; ready for use.
Example
The space project will be operational by 2025.
C1 adjective
Operative
Meaning
Functioning; in effect; working; active;
Example
The new safety protocols became operative immediately after the accident.
B2 noun
operator
Meaning
a person who operates equipment, a business, or controls something
Example
The machine operator ensured that everything ran smoothly.
C2 noun
operetta
Meaning
a short opera with light and humorous themes
Example
The theater staged a famous operetta by Gilbert and Sullivan.
C2 noun
opiate
Meaning
a drug containing opium or its derivatives, used to relieve pain or cause sleep
Example
The doctor prescribed an opiate to relieve the patient's pain.
C2 verb
opine
Meaning
to express an opinion or belief
Example
The professor opined that the policy would fail.
B1 noun
Opinion
Meaning
a view or judgment formed about something; a belief or assessment based on grounds short of proof
Example
In my opinion, this is the best solution.
B2 noun
Opponent
Meaning
a person who disagrees with or resists a proposal or practice; someone who competes against another
Example
The chess player defeated his strongest opponent.
C1 adjective
opportune
Meaning
Happening at a suitable or convenient time.
Example
She arrived at an opportune moment to help.
C2 noun
opportunism
Meaning
The practice of taking advantage of opportunities regardless of principles or ethics.
Example
His decision was driven by opportunism, not values.
C1 noun
opportunist
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.
B1 noun
opportunities
Meaning
A set of circumstances that makes it possible to do something; chances for advancement or success.
Example
Opportunities for jobs decreased.
B1 noun
opportunity
Meaning
A favorable chance or set of circumstances that makes it possible to do something.
Example
She seized the opportunity to study abroad.
B2 verb
oppose
Meaning
to disagree with or resist; to act against
Example
Many citizens oppose the new tax policy.
B2 adjective
opposed
Meaning
being against or in disagreement with something
Example
She is strongly opposed to animal testing.
A2 adjective
Opposite
Meaning
Contrary; completely different; facing each other; reverse;
Example
They have opposite views on politics but remain good friends.
B2 noun
opposition
Meaning
the action of opposing or resisting something
Example
The opposition to the new law was strong.
C1 verb
oppress
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
Meaning
cruel or unjust treatment or exercise of authority; the state of being subject to harsh treatment
Example
The people fought against political oppression.