english
1
general::
adj.
basic:
It is an essential part of the plan.
adj.
crucial:
It is essential that we go now.
Simple Definitions
2
general::
essential
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.
essential 2
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.
transnet.ir
3
general::
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 bookselling. • 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.
Longman-Thesaurus
4
general::
adj. VERBS appear, be, seem | become It is becoming almost essential for students to have a second language. | remain | make sth Increased competition makes it essential for the business to innovate. | consider sth, deem sth, regard sth as, see sth as, think sth Do you consider these textbooks essential for the course? ADV. really | absolutely | almost, virtually | fairly | by no means Although useful, the accessories are by no means essential. PREP. for the skills essential for success | to He believed that some form of religion was essential to human life.
Oxford Collocations Dictionary