opening time–oppose Vocabulary (O Words) – Meanings & Synonyms

opening time

BusinessA2

Meaning: The specific time when a business starts operating for the day.

Part of speech: noun

Example: The opening time for the café is 8 AM.

Category: Business

Synonyms:

start time
beginning time

openly

CommunicationB1

Meaning: In a way that is clear and not hidden.

Part of speech: adverb

Example: She spoke openly about her feelings.

Category: Communication

Synonyms:

frankly
honestly

Antonyms:

secretly
covertly

open-minded

Personal DevelopmentB1

Meaning: Willing to consider new ideas.

Part of speech: adjective

Example: She is very open-minded about different cultures.

Category: Personal Development

Synonyms:

receptive
tolerant

Antonyms:

narrow-minded
intolerant

open-mouthed

EmotionC1

Meaning: Having the mouth open, often in surprise.

Part of speech: adjective

Example: He stood there, open-mouthed at the amazing view.

Category: Emotion

Synonyms:

astonished
amazed

Antonyms:

unimpressed
indifferent

open-necked

FashionB2

Meaning: Referring to clothing with a wide or open neckline.

Part of speech: adjective

Example: He wore an open-necked shirt to the party.

Category: Fashion

Synonyms: collarless

open-plan

ArchitectureB2

Meaning: Referring to a design with few or no walls separating spaces.

Part of speech: adjective

Example: They have an open-plan office to encourage collaboration.

Category: Architecture

Synonyms: open concept

Antonyms: closed-off

open-top

TransportationB2

Meaning: Referring to a vehicle without a roof.

Part of speech: adjective

Example: They rented an open-top car for their trip.

Category: Transportation

Synonyms: convertible

opera

ArtsB2

Meaning: A dramatic work set to music, typically in a theatrical setting.

Part of speech: noun

Example: They went to see an opera at the grand theater.

Category: Arts › Music

Synonyms: musical drama

opera house

ArtsB2

Meaning: A theater building specifically designed for opera performances.

Part of speech: noun

Example: The opera house was beautifully designed.

Category: Arts › Theatre

Synonyms: theater

operandi

LawC2

Meaning: A method or way of doing something, often used in a specific context.

Part of speech: noun

Example: The detective studied the criminal's operandi.

Category: Law › Criminal Law

Synonyms:

method
procedure

operate

TechnologyB1

Meaning: To control or manage something.

Part of speech: verb

Example: He will operate the machinery during the event.

Category: Technology

Meaning 2: To perform a medical procedure.

Example: The surgeon will operate on the patient tomorrow.

Synonyms:

manage
control

Antonyms:

neglect
ignore

operatic

ArtsC1

Meaning: Relating to opera or its style.

Part of speech: adjective

Example: The singer had an operatic voice.

Category: Arts › Music

Synonyms:

dramatic
theatrical

operating

TechnologyB1

Meaning: In the process of functioning or working.

Part of speech: adjective

Example: The operating system needs an update.

Category: Technology

Synonyms:

functioning
working

Antonyms: non-operational

operating room

MedicineB2

Meaning: A room in a hospital where surgeries are performed.

Part of speech: noun

Example: The patient was taken to the operating room.

Category: Medicine

Synonyms: surgery room

operating system

TechnologyB2

Meaning: Software that manages computer hardware and software resources.

Part of speech: noun

Example: Windows is a popular operating system.

Category: Technology

Synonyms: OS

operating table

MedicineB2

Meaning: A table on which surgical operations are performed.

Part of speech: noun

Example: The surgeon prepared the operating table for the procedure.

Category: Medicine

Synonyms: surgery table

operating theatre

MedicineB2

Meaning: A room where surgical operations are performed, often with an audience.

Part of speech: noun

Example: The medical students observed the surgery in the operating theatre.

Category: Medicine

Synonyms: surgery room

operation

MedicineB1

Meaning: A medical procedure to treat a condition.

Part of speech: noun

Example: The operation was successful.

Category: Medicine

Meaning 2: The act of functioning or working.

Example: The operation of the machine was smooth.

Synonyms:

procedure
functioning

Antonyms:

dysfunction
failure

operational

TechnologyB2

Meaning: Ready for use or functioning.

Part of speech: adjective

Example: The new equipment is now operational.

Category: Technology

Synonyms:

functional
working

Antonyms:

non-operational
inoperative

operative

BusinessC1

Meaning: A person who works in a specific job or role.

Part of speech: noun

Example: He is an operative in the intelligence agency.

Category: Business

Synonyms:

agent
worker

operator

TechnologyB2

Meaning: A person who operates equipment or machinery.

Part of speech: noun

Example: The operator controlled the crane during the construction.

Category: Technology

Synonyms:

machinist
controller

operetta

ArtsC1

Meaning: A short opera, often with spoken dialogue.

Part of speech: noun

Example: The operetta was charming and entertaining.

Category: Arts › Music

Synonyms:

musical
light opera

ophthalmic

MedicineC1

Meaning: Relating to the eye or vision.

Part of speech: adjective

Example: The ophthalmic examination was thorough.

Category: Medicine › Ophthalmology

Synonyms: ocular

ophthalmologist

MedicineB2

Meaning: A medical doctor specializing in eye and vision care.

Part of speech: noun

Example: She visited the ophthalmologist for her eye exam.

Category: Medicine › Ophthalmology

Synonyms: eye doctor

ophthalmology

MedicineC2

Meaning: The branch of medicine dealing with the eye and its diseases.

Part of speech: noun

Example: Ophthalmology is a vital field in healthcare.

Category: Medicine › Ophthalmology

Synonyms: eye care

opiate

MedicineC1

Meaning: A drug derived from opium, used for pain relief.

Part of speech: noun

Example: The doctor prescribed an opiate for the patient's pain.

Category: Medicine

Synonyms:

painkiller
narcotic

opine

CommunicationC1

Meaning: To express an opinion.

Part of speech: verb

Example: He likes to opine on various topics.

Category: Communication

Synonyms:

express
state

opinion

CommunicationA2

Meaning: A belief or judgment about something.

Part of speech: noun

Example: She has a strong opinion on climate change.

Category: Communication

Synonyms:

view
belief

Antonyms:

fact
certainty

opinion former

CommunicationC2

Meaning: A person or organization that influences public opinion.

Part of speech: noun

Example: The journalist is considered an opinion former.

Category: Communication

Synonyms:

influencer
thought leader

opinion poll

PoliticsB2

Meaning: A survey of public opinion on a specific issue.

Part of speech: noun

Example: The opinion poll showed a shift in voter preferences.

Category: Politics

Synonyms:

survey
poll

opinionated

CommunicationB2

Meaning: Having strong opinions that are often not based on reason.

Part of speech: adjective

Example: He is very opinionated about politics.

Category: Communication

Synonyms:

biased
dogmatic

Antonyms:

open-minded
neutral

opium

MedicineC1

Meaning: A narcotic drug obtained from the opium poppy.

Part of speech: noun

Example: Opium has a long history of use in medicine.

Category: Medicine

Synonyms:

narcotic
drug

opossum

NatureB2

Meaning: A nocturnal marsupial native to the Americas.

Part of speech: noun

Example: The opossum is known for playing dead when threatened.

Category: Nature › Wildlife

Synonyms: marsupial

opponent

SportsB1

Meaning: A person who competes against another in a contest.

Part of speech: noun

Example: She faced a tough opponent in the finals.

Category: Sports

Synonyms:

rival
adversary

Antonyms:

ally
partner

opportune

TimeC1

Meaning: Occurring at a favorable or advantageous time.

Part of speech: adjective

Example: The rain came at an opportune moment for the farmers.

Category: Time

Synonyms:

timely
convenient

Antonyms:

inopportune
untimely

opportunism

BusinessC2

Meaning: The practice of taking advantage of opportunities as they arise.

Part of speech: noun

Example: His opportunism in business led to quick success.

Category: Business

Synonyms:

exploitation
self-interest

Antonyms: principled behavior

opportunist

BusinessC2

Meaning: A person who takes advantage of opportunities, often unethically.

Part of speech: noun

Example: He is seen as an opportunist in the political arena.

Category: Business

Synonyms:

exploiter
self-seeker

opportunistic

BusinessC2

Meaning: Taking advantage of opportunities, often in a selfish way.

Part of speech: adjective

Example: His opportunistic behavior was frowned upon by his peers.

Category: Business

Synonyms:

exploitative
self-serving

opportunity

BusinessB1

Meaning: A chance for advancement or progress.

Part of speech: noun

Example: She seized the opportunity to study abroad.

Category: Business

Synonyms:

chance
possibility

Antonyms:

obstacle
hindrance

oppose

PoliticsB1

Meaning: To disagree with or resist something.

Part of speech: verb

Example: They decided to oppose the new law.

Category: Politics

Synonyms:

resist
disagree

Antonyms:

support
agree

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