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THE ENGLISH DICTIONARY

English English

CEFR LEVEL

3335 entries have no recorded CEFR level and are included in All.

285 words & expressions

open up

phrasal verb C1

To create new opportunities, or to speak freely and candidly; to speak freely or openly about one's feelings; to make available or accessible

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Open up opportunities

phrase

to create, reveal, or make accessible new possibilities and favorable career prospects

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Open up the floor

phrase

to invite questions, comments, or discussion from the audience

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Open up to

phrasal verb

to speak honestly and share one's private feelings, worries, or thoughts with someone

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open-minded

phrase

receptive to new ideas, opinions, arguments, or unfamiliar cultural customs without prejudice

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openly

word B2

without concealment, deception, or hesitation; frankly and publicly

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opera

word A1

a play with music where most words are sung a dramatic performance in which the actors sing most of their lines

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operate

word A2

to use or control a machine, business, or system to function; to control or manage; to perform surgery to control the functioning of a machine, system, or business

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operation

word B1

a planned activity or process; also a medical surgery an act or process of functioning or operating; an act or process of functioning or operating

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operator

word B2

a person who operates a machine, or a company running a service a person who operates equipment, a business, or controls something; a person who operates equipment, a business, or controls something

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opinion

word A2

what someone thinks or believes about something a view or judgment formed about something; a belief or assessment based on grounds short of proof A belief, judgment, or viewpoint about something, not necessarily based on fact.; A view or judgment formed about something, not necessarily based on fact or knowledge.; a view or judgment formed about something; a belief or assessment based on grounds short of proof A belief, judgment, or viewpoint about something, not necessarily based on fact.

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opponent

word B2

someone who competes against or opposes another in a contest, game, or argument; a person who disagrees with or resists a proposal or practice; someone who competes against another A person who competes against or disagrees with another.

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opportunities

word B1

Circumstances that make it possible to do something; chances for advancement or success.

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opportunity

word A2

a good chance to do something useful or important A favorable chance or set of circumstances that makes it possible to do something.; A favorable chance or set of circumstances that makes it possible to do something.

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oppose

word A2

to disagree with something and try to stop or resist it to disagree with or resist; to act against to disagree with or fight against something; to disagree with or resist; to act against to disagree with or fight against something

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opposite

word A2

completely different; on the other side facing something Contrary; completely different; facing each other; reverse; Completely different; on the other side or facing something.

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opposition

word B1

disagreement or resistance; the group or party that disagrees with those in power the action of opposing or resisting something

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opt for

phrasal verb

To choose or decide on a particular option from among alternatives

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Opt out

phrasal verb

To choose not to participate in something or decide against an option

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optimal

word B2

Best or most favorable; optimum.

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optimism

word B2

hopefulness and confidence about the future or the successful outcome of something

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optimization

word C1

The action of making the best or most effective use of a situation or resource.

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optimize

word C1

To make the best or most effective use of a situation, opportunity, or resource.

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optimized

word C1

Made as effective, functional, or efficient as possible.

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optimum

word C1

Most favorable, advantageous, or conducive to a desired outcome; best.

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option

word B1

one thing that you can choose from two or more possibilities a thing that is or may be chosen; an alternative course of action A choice or possibility available among alternatives.; A thing that is or may be chosen; an alternative course of action.; a thing that is or may be chosen; an alternative course of action A choice or possibility available among alternatives.

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or not

phrase A1

used to present an alternative or ask whether something will happen or not

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orange

word A1

a round citrus fruit; the color between red and yellow having a color between red and yellow like that of a ripe orange fruit a round citrus fruit with orange skin and juicy flesh a fruit that is typically round and orange in color; having a color between red and yellow like that of a ripe orange fruit a round citrus fruit with orange skin and juicy flesh a fruit that is typically round and orange in color

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orator

word B2

a person who gives speeches in public; a skilled public speaker

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oratory

word C1

The art or practice of formal public speaking, especially in an eloquent and persuasive manner.

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orchestrate

word C1

To plan, arrange, or coordinate the elements of a situation to achieve a desired result, often secretly.

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ordeal

word C1

a very painful, severe, or difficult experience

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order

word A1

a request to buy something; an instruction; a correct arrangement a command or instruction; the arrangement of things following a particular sequence to give a command; to request something to be made or supplied an arrangement or command; a request for something to be made, done, or delivered; An authoritative command or instruction given by someone in power.; a command or instruction; the arrangement of things following a particular sequence to give a command; to request something to be made or supplied an arrangement or command; a request for something to be made, done, or delivered

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ordinary

word B1

normal, usual, and not special normal; usual; not special Common, usual, or not special; something that happens regularly.

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organ

word B1

a distinct part of an organism that performs a specific vital function; also a large musical instrument a part of the body that performs a specific function

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organic

word B1

produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents; Produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents. Relating to or derived from living matter; produced without artificial chemicals.

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organic farming

word B2

An agricultural system that uses fertilizers of organic origin and biological pest control rather than synthetic chemicals.

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organic foods

word B1

Food produced without synthetic chemicals, artificial fertilizers, or genetically modified organisms.

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organization

word B1

An organized group of people with a particular purpose, such as a business, government department, or charity.

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organizations

word B1

Organized bodies of people with a particular purpose, such as businesses, charities, or institutions.

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