require
[verb]
Synonyms:
- need, crave, desire, lack, miss, want, wish
- demand, ask, bid, call upon, command, compel, exact, insist upon, oblige, order

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English Thesaurus: insist, demand, require, be adamant, won’t take no for an answer, ...

[TahlilGaran] English Synonym Dictionary ▲

re‧quire S1 W1 AC /rɪˈkwaɪə $ -ˈkwaɪr/ verb [transitive not in progressive]
[Word Family: verb: require; noun: requirement]
[Date: 1300-1400; Language: Old French; Origin: requerre, from Vulgar Latin requaerere 'to try to find, need', from Latin requirere, from quaerere 'to ask']

1. to need something:
Campbell’s broken leg will probably require surgery.
What’s required is a complete reorganization of the system.
Most house plants require regular watering.

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Require is used especially in written English. In everyday English, people usually say need:
His leg will probably need surgery.

2. if you are required to do or have something, a law or rule says you must do it or have it
be required to do something
You are required by law to wear a seat belt.
require that
Regulations require that students attend at least 90% of the lectures.
The bill failed to get the required number of votes.

[TahlilGaran] Dictionary of Contemporary English ▲

require
verb
ADV. urgently Many of the refugees urgently require medical treatment.
reasonably (law)

[TahlilGaran] Collocations Dictionary ▲

insist to say firmly that someone should do something or that something should happen:
She insisted that it was her turn to drive.
demand to say very strongly and sometimes angrily that you want something or that something must happen:
I wrote a letter to the company, demanding an apology and a refund.
The guards demanded to see her ID.
require [usually passive] formal if you are required to do something, a rule or law says that you must do it:
The successful applicant will be required to sign a two-year contract.
be adamant to say very firmly that something must happen or is right, and refuse to change your mind when other people try to persuade you:
The actress has always been adamant about keeping her private life private.
won’t take no for an answer informal to insist that someone must do what you say or ask:
You’re coming home with me – I won’t take no for an answer.
put your foot down to say very firmly that someone must not do something:
Ed was talking about dropping out of school, but Mom and Dad put their foot down.

[TahlilGaran] English Thesaurus ▲

need if you need something, you must have it, because you cannot do something without it:
I need your help.
The people desperately need food and clean water.
require formal to need something:
Children require a lot of attention.
The game requires great skill.
can’t do without something to be unable to do something without something:
A lot of people can’t do without their mobile phones.
could do with something/could use something informal to need or want something:
Shall we stop? I could do with a rest.
be desperate for something to need something urgently:
Liz was desperate for a cigarette.
The people are desperate for food.
be dependent on something/somebody to be unable to live or continue normally without something or someone:
The refugees are dependent on outside food supplies.
demand formal if one thing demands another, it needs that thing in order to happen or be done successfully:
The situation is urgent and demands immediate action.
a real/clear need (=one that really exists)
There is a real need for after-school care in our area.
an urgent need (=one that must be dealt with quickly)
The most urgent need was for more teachers.
a pressing/crying need (=a very urgent need)
There’s a crying need for more doctors and nurses.
a desperate need (=an extremely urgent need)
There is a desperate need to build more housing.
a growing/increasing need
She emphasized the growing need to deal with environmental problems.
stress/emphasize/underline the need for something (=say how important it is)
He stressed the need for better training courses.
eliminate the need for something (also obviate the need for something formal) (=make something unnecessary)
The new drug treatment eliminates the need for surgery.
a need exists
New teaching materials must be created if a need exists for them.
there is a need for something
Clearly there is a need for more research.
there is no need for something
They felt that there was no need for a formal contract.
as/if/when the need arises (=if or when something becomes necessary)
Team members move from job to job as the need arises.
if need be (=if it is necessary)
I can work during my lunch break if need be.

[TahlilGaran] English Thesaurus ▲