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TOEFL IELTS BNC: 1155 COCA: 1949

essential

Word family 
es·sen·tial1 /ɪˈsenʃəl/ ●●● S3 W2 adjectiveadj  
1  IMPORTANTextremely important and necessary 极其重要的；必不可少的
essential for/to
 A good diet is essential for everyone.
良好的饮食对于每个人都极为重要。
it is essential (that)
 It is essential that our pilots be given the best possible training.
我们的飞行员要受到最好的培训，这是必不可少的。
it is essential to do something
 It is essential to book in advance.
提前预订是完全必要的。
 Window locks are fairly cheap and absolutely essential.
窗锁相当便宜，绝对有必要安装。
 Even in small companies, computers are an essential tool.
即使在小公司里，计算机也是不可或缺的工具。
► see thesaurus at important, necessary
2  MAINthe essential part, quality, or feature of something is the most basic one 最基本的；本质的 SYN fundamental
 The essential difference between Sam and me was the fact that I took life seriously.
我和萨姆的根本区别在于我是认真对待生活的。
 The essential point of relay racing is that it is a team effort.
接力赛跑的基本要点是讲究团队配合。
n COLLOCATIONS – Meaning 1: extremely important and necessary
nouns
essential information
You can get essential travel information from the website.
essential reading
The journal is essential reading for doctors.
essential services (=organizations such as the police or the fire or health service)
The law prohibits workers in essential services from striking.
adverbs
absolutely/really essential
It is absolutely essential to keep this information secret.
verbs
be seen/regarded as essential
These measures are seen as essential for national security.
be considered/deemed essential
During the summer, air conditioning is considered essential.
phrases
play/perform an essential role in something
Antibiotics play an essential role in controlling infection.
n THESAURUS
essential extremely important and necessary
Water is essential for life.
The right to protest is an essential part of any democracy.
I missed out an essential ingredient.
They learn skills that are essential for success in later life.
vital extremely important and necessary. Vital sounds stronger than essential
His evidence was vital to the defence case.
Nurses and police officers provide vital services.
It is vital that leaking gas pipes are fixed immediately.
crucial extremely important and making the difference between success and failure
Advertising is crucial to successful book selling.
The headteacher has played a crucial role in transforming this school.
indispensable if someone or something is indispensable, you cannot do something without them and they are extremely useful
She soon made herself indispensable in the office.
Mobile phones have become an indispensable part of our daily lives.
something is a must informal used when recommending something to someone and saying that they should definitely have it, do it, visit it etc
Virus checkers are a must for computer users concerned with security.
If you’re in Austria, a visit to Salzburg is a must.
n COLLOCATIONS – Meaning 2: the essential part, quality, or feature of something is the most basic one
nouns
the essential element
Hard work is the essential element of his success.
an essential ingredient
Most people believe that love is an essential ingredient in a marriage.
an essential difference
The essential difference between the two boats lies in the design of the hull.
the essential point
The essential point is that all children should have an equal opportunity to study.
an essential feature
A free press is an essential feature of a democracy.
an essential component
Controlling inflation is an essential component of the government’s economic strategy.
the essential nature of something
The essential nature of stem cells is that they are the source of all other cells in the body.
Examples from the Corpus
essential• If you're going hiking in the mountains, a decent pair of boots is essential.• If you're going walking in the mountains, strong boots are essential.• A second essential component in all such programmes is winning over local people.• What is the essential difference between these two books?• The essential difference between this class and other French classes is that this is intended for business people.• Quick personal decisions are essential for success in an entrepreneurial business.• Calcium is essential for the development of healthy teeth and bones.• This follow-up is essential in ward teaching, but poor facilities often make it difficult to achieve without interruption.• But Silber and the others have identified one essential ingredient: abhorrence for the status quo.• The structure of levels was an essential part of the National Curriculum from its inception.• The tourist industry is now acknowledged as an essential part of the Spanish economy.• The essential point is that you both need to treat each other with much more respect.• They consider that an exchange of information on this problem is an essential prerequisite.• It is essential that the oil is checked every 10,000 km.• It's essential that you wear protective clothing in this area.• Cleaners are the most essential, the most unseen, apparently the least powerful of modern capitalism's new working class.• The layer of fat on the baby seal's body is essential to its survival.• It is essential to read any document carefully before you sign it.• In undermining the notion of essential truth, however, Nietzsche also undermines the notion of an essential self.
essential for/to• Programs such as this are essential for anybody building a library of scanned images, gem drawing files or other formats.• It is also essential to be honest about your financial needs or lack of financial ambition.• It is essential to book in advance.• Although essential to children, the tissue seems less important to healthy adults.• When roasting lean meats and small game birds, basting is essential to maintain moisture.• He acknowledged that it is essential to maintain the balance between basic research and commissioned research.• In these respects, as your Lordships can see, the Lawrence principle was not essential to the reasoning.• This context is essential to the understanding of humanism, one of the fundamental aspects of Western thought.• Good food is essential for your health.
essential difference• This is the essential difference between anthropology and Darwinism.• This has led to the argument that there is no essential difference between debt and tax finance.• What then is the essential difference between direct and traditional insurance?• The essential difference between free email and its paid for counterpart is that the email service is provided through a Web interface.• The essential difference between single-step selection and cumulative selection is this.• And in that there lies an essential difference between the painters and the poets here.• The market-based economies and private ownership in Western democracies make an essential difference in the scope and application of the centralization concepts.• Whether they made an essential difference is another story, but I tend to think that everything counts.
essential2 noun  
1  [countableC usually plural]IMPORTANT something that is necessary to do something or in a particular situation 必需品；必不可少的东西 SYN necessity
 She packed a few essentials.
她把几件生活必需品装进箱子。
 We only had the bare essentials (=the most necessary things).
我们只有几样最要紧的东西。
2  the essentials [plural]MAIN the basic and most important information or facts about a particular subject 要点，要素
the essentials of
 We have no reason to doubt the essentials of the girl’s story.
我们没有理由怀疑这个女孩描述中的要点。
Examples from the Corpus
the essentials• the essentials of English grammar• Of course, shows have changed, but the essentials are still in place.• Not a stick of furniture, no anglepoise lamp, but the essentials are there.• In contrast, the sea leaves no marks and man can then contemplate the essentials of life.• He reduced this approach to six principles, which make a good summary of the essentials of political Realism.• It will improve their lives by providing the essentials.• For Ure, however, special expertise is less important than the essentials of contact and clout.• But the self-made billionaire is an autocrat who seems not to understand the essentials of democracy.• Second phase With the essentials complete, the second phase of the project - to improve overall appearance, is well under way.
Examples from the Corpus
essential• She had packed two cases with clothes, towels and essentials.• Her bag was light now, only packed with the bare essentials.• In any conference or special event there are certain essentials.• Leg infantry has to carry every item they will need, and that means only the barest of essentials.• The budget provides money for food, transportation, and other essentials.• But also, the principle of parsimony should be used to keep the research down to essentials.• Now it was down to essentials.
bare essentials• Peter Stansill provided the bare essentials, and Williams, hurriedly schooled in the importance of deadlines, learnt on the job.• Yet Gloria herself never seemed to hold on to more than the bare essentials that they had in their two paper carriers.• Now, she was stripped down to the bare essentials of her person, trying to deal with her knowledge.• Reduced to the bare essentials, the divergent internal performance patterns looked like the figure on page 264.• Despite a lifestyle stripped to the bare essentials, they are also some of the most visually arresting animals in the desert.• Her bag was light now, only packed with the bare essentials.• Learn how to distil large quantities of information into their bare essentials. 7.• As its title suggests, Functionalism tends to reduce a problem, and its solution, to bare essentials.
es·sen·tial1 adjectiveadj →n COLLOCATIONS1 →n COLLOCATIONS2
→n THESAURUS1essential2 noun
LDOCE Online
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 1155 COCA: 1949
essential

adjective

VERBS | ADVERB | PREPOSITION VERBS➤appear, be, seem顯得必要；必要；好像必要▸➤become變得必要◇It is becoming almost essential for students to have a second language.學生掌握第二語言幾乎是必須的了。➤remain依然必要▸➤make sth使⋯必要◇Increased competition makes it essential for the business to innovate.日益激烈的競爭使企業創新變得極為重要。➤consider sth, deem sth, find sth, regard sth as, see sth as, think sth認為⋯有必要；視⋯為必不可少◇Do you consider these textbooks essential for the course?你認為這個課程必須採用這些教科書嗎？ADVERB➤really, truly, very (NAmE) 的確／確實／非常必要▸➤absolutely絕對必不可少▸➤almost, virtually幾乎必不可少▸➤fairly相當必要➤clearly顯然必要◇A printer is clearly essential to such a task.顯然，這一工作必須要有一台打印機。➤equally同樣必不可少◇Diet is crucial; exercise is equally essential.飲食很關鍵，鍛煉也同樣必不可少。➤by no means絕非必要◇Although useful, the accessories are by no means essential.儘管這些配件很有用，但並非必不可少。PREPOSITION➤for對⋯是必要的◇the skills essential for success成功的必備技巧➤to對於⋯不可缺少◇He believed that some form of religion was essential to human life.他認為宗教信仰對於人生不可或缺。
TOEFL IELTS BNC: 1155 COCA: 1949
essential noun
⇨ basics (the essentials of English grammar) ⇨ need (the bare essentials)essential adj.
⇨ essential (Experience is essential for this job.) ⇨ fundamental (the essential character of the town)essential

adjective

  ➡ See also the entries for important and necessary 另见important条和necessary条essential ♦︎ vital ♦︎ crucial ♦︎ critical ♦︎ decisive ♦︎ indispensable ♦︎ imperative ♦︎ pivotal ♦︎ of the essenceThese words all describe sb/sth that is extremely important and completely necessary because a particular situation or activity depends on them. 这些词均表示极其重要的、完全必要的。PATTERNS AND COLLOCATIONS 句型和搭配◆essential / vital / crucial / critical / decisive / indispensable / imperative / of the essence for sth◆essential / vital / crucial / critical / indispensable / pivotal to sth◆to be essential / vital / crucial / critical / imperative that...◆to be essential / vital / crucial / critical / imperative to do sth◆an essential / a vital / a crucial / a critical / a decisive / an indispensable / a pivotal part / factor◆an essential / a vital / a crucial / a critical / an indispensable ingredient / tool◆an essential / a vital / a crucial / a critical component◆essential / vital / crucial services◆the crucial / critical / decisive / pivotal moment◆to play an essential / a vital / a crucial / a critical / a decisive / a pivotal part / role in sth◆of vital / crucial / critical / decisive importance◆absolutely essential / vital / crucial / critical / decisive / indispensable / imperative / pivotal◆quite essential / vital / crucial / critical / decisive / indispensable■ essential extremely important and completely necessary, because without it sth cannot exist, be made or be successful 极其重要的；完全必要的；必不可少的◆Experience is essential for this job.对于这个工作，经验是非常重要的。◆Money is not essential to happiness.金钱并非是幸福必不可少的条件。◆It is essential that you have some experience.你必须要有些经验，这很重要。◆It is essential to keep the two groups separate.将这两个组隔开是完全必要的。◆The museum is closed while essential repairs are being carried out.博物馆现正关闭以进行必要的修缮。OPP inessential ⓘ Inessential things are not necessary. * inessential指不必要的◆inessential luxuries不必要的奢侈品   see also essential ⇨ need noun ■ vital ˈvaɪtl essential 极其重要的；完全必要的；必不可少的◆Bean sprouts contain many of the vitamins that are vital for health.豆芽含有多种对健康来说必不可少的维生素。◆Good financial accounts are vital to the success of any enterprise.妥善的金融账目对任何企业的成功都至关重要。◆It is vital that you keep accurate records when you are self-employed.从事个体经营的人要准确记录账目，这十分重要。◆The police play a vital role in our society.警察在我们的社会中起着极其重要的作用。▸ vitally

adverb

◆Education is vitally important for the country's future.教育对国家的未来是极其重要的。NOTE 辨析 Essential or vital?There is no real difference in meaning between these words and they can be used with the same range of nouns and structures. However, there can be a slight difference in tone. Essential is used to state a fact or opinion with authority. Vital is often used when there is some anxiety felt about sth, or a need to persuade sb that a fact or opinion is true, right or important. Vital is less often used in negative statements. 这两个词在含义上没有实质差别，所搭配的名词和结构也相同，但是语气上略有差异。essential指用权威的语气陈述事实或观点，vital常用于表示有些焦虑的语气，或用于劝说某人相信某一事实或观点是真实、正确或重要的。vital不常用于否定句◆It was vital to show that he was not afraid.重要的是要表现出他毫不畏惧。◆Money is not vital to happiness. ■ crucial ˈkruːʃl extremely important because a particular situation or activity depends on it 至关重要的；关键的◆Winning this contract is absolutely crucial to our long term success.赢得这份合同对我们的长期成功绝对是至关重要的。◆It is crucial that we get this right.我们把这个问题弄明白是极其重要的。◆He wasn't there at the crucial moment (= when he was needed most).紧要关头他却不在那里。▸ crucially

adverb

◆These things are all crucially important.这些事情全都极其重要。■ critical ˈkrɪtɪkl crucial 至关重要的；关键的◆Price and availability are the critical factors that will determine product success.价格和购买是否便利都是决定产品成功的关键因素。◆If the temperature drops those critical two degrees, the engine will stop functioning.如果温度降低那关键的两度，发动机将停止运转。▸ critically

adverb

◆The next few days will be critically important to the President's election chances.今后的几天对总统选举的成败至关重要。NOTE 辨析 Crucial or critical?There is no real difference in meaning between these words and they can be used with the same range of nouns and structures. However, there is sometimes a slight difference in context. Critical is often used in technical matters of business or science; crucial is often used to talk about matters that may cause anxiety or other emotions. 这两个词在含义上没有实质差别，所搭配的名词和结构也相同，但是使用语境略有差异。critical常用于商务或科学语境谈论专业问题，crucial常修饰可能引发焦虑或其他情感的事情。■ decisive dɪˈsaɪsɪv of the greatest importance in affecting the final result of a particular situation 决定性的；关键的◆Gettysburg was the decisive battle of the Civil War.葛底斯堡战役在美国内战史上具有决定性的意义。◆Signing the treaty was a decisive step (= an important action that will change a situation) towards a cleaner environment.条约的签署是向更洁净的环境迈出的关键性一步。ⓘ Decisive is not used simply to mean 'extremely important'. * decisive不单单表示非常重要◆Reducing levels of carbon dioxide in the atmosphere is of decisive importance. It is used when you are making a judgement that sb/sth was or will be the most important fact affecting the result of a particular past or future situation. * decisive是指对过往或将来之事态发展结果具决定性影响的◆Morrison scored the decisive goal in the 75th minute of the game.莫里森在比赛进行到75分钟时进球得了关键的一分。 ▸ decisively

adverb

◆The governing party is expected to win decisively in the elections.预计执政党将在大选中获得决定性的胜利。■ indispensable ˌɪndɪˈspensəbl essential; too important to be without 不可或缺的；必不可少的◆Cars have become an indispensable part of our lives.汽车已经成为我们生活中必不可少的一部分。◆She made herself virtually indispensable to the department.她成功地让自己成了这个部门的中坚分子。OPP dispensable ⓘ Dispensable things are not necessary and can be got rid of. * dispensable指不必要的、可有可无的◆They looked on music and art lessons as dispensable.他们觉得音乐课和艺术课可有可无。 ■ imperative ɪmˈperətɪv [not usually before noun] (formal) extremely important and needing immediate attention or action 重要紧急的；迫切的；急需处理的◆It is absolutely imperative that we finish by next week.我们的当务之急是在下周内把事情完成。■ pivotal ˈpɪvətl (rather formal, especially written) extremely important because a particular situation or activity depends on it 关键性的；核心的◆The Foreign Secretary has played a pivotal role in European affairs.外交部长在欧洲事务中起到了关键性的作用。◆Accountancy, law and economics are pivotal to a successful career in any financial services area.会计学、法学和经济学在任何金融服务领域都是事业成功的关键。ⓘ Pivotal is used especially to describe the part that sb/sth plays in a particular situation; it is not used to describe items or actions that are just extremely important. * pivotal尤指在某一情形下所起的关键性作用，不用于描述非常关键的事物或行为◆pivotal services/supplies/repairs ◆It is pivotal that we get this right. ■ of the ˈessence

idiom

 (rather informal) essential 必不可少；非常重要◆In this situation time is of the essence (= we must do things as quickly as possible).在这种情况下，时间是关键。◆Speed is of the essence when transporting casualties to hospital.运送伤者去医院时，速度至关重要。
TOEFL IELTS BNC: 1155 COCA: 1949
essential
Necessary: necessary, essential, vital...
Natural, basic and essential: basic, fundamental, natural...
Typical, traditional and usual: typical, traditional, usual...
Good for you or for your health: healthy, wholesome, well-balanced...
Important thing or detail: feature, priority, element...

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