Require vs. Need

Require and Need Definitions
Require
To have as a requisite or necessity; need or depend on
Do you require assistance? Most plants require plenty of water.
Need
A condition or situation in which something must be supplied in order for a certain condition to be maintained or a desired state to be achieved
Crops in need of water.
A child's need for affection.
Require
To stipulate as obligatory by authority
The law requires full disclosure of charitable donations.
Need
Something required or wanted; a requisite
"Those of us who led the charge for these women's issues ... shared a common vision in the needs of women" (Olympia Snowe).
Require
To demand as obligatory or appropriate
Skiing requires practice.
Need
Necessity; obligation
There is no need for you to go.
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Require
To impose an obligation on; compel
The school requires all students to study mathematics.
Need
A condition of poverty or misfortune
The family is in dire need.
Require
(obsolete) To ask (someone) for something; to request.
Need
To be under the necessity of or the obligation to
They need not come. You needn't be concerned.
Require
To demand, to insist upon (having); to call for authoritatively.
Need
To have need of; require
The family needs money. We need to get some more paint.
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Require
Naturally to demand (something) as indispensable; to need, to call for as necessary.
Need
To have an obligation (to do something)
You need to clean up your room.
Require
To demand of (someone) to do something.
Need
To be subject (to an action) by obligation
Bags need to be stowed underneath the seat in front of you.
Require
To demand; to insist upon having; to claim as by right and authority; to exact; as, to require the surrender of property.
Shall I say to CæsarWhat you require of him?
By nature did what was by law required.
Need
To want to be subject to
We don't need another lecture on the subject.
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Require
To demand or exact as indispensable; to need.
Just gave what life required, and gave no more.
The two last [biographies] require to be particularly noticed.
Need
To be in need or want.
Require
To ask as a favor; to request.
I was ashamed to require of the king a band of soldiers and horsemen to help us against the enemy in the way.
Need
To be necessary.
Require
Require as useful, just, or proper;
It takes nerve to do what she did
Success usually requires hard work
This job asks a lot of patience and skill
This position demands a lot of personal sacrifice
This dinner calls for a spectacular dessert
This intervention does not postulates a patient's consent
Need
A requirement for something; something needed.
There's no need to speculate; we can easily find out for sure.
She grew irritated with his constant need for attention.
Our needs are not being met.
I've always tried to have few needs beyond food, clothing and shelter.
Require
Consider obligatory; request and expect;
We require our secretary to be on time
Aren't we asking too much of these children?
I expect my students to arrive in time for their lessons
Need
Lack of means of subsistence; poverty; indigence; destitution.
Require
Make someone do something
Need
(transitive) To have an absolute requirement for.
Living things need water to survive.
Require
Have need of;
This piano wants the attention of a competent tuner
Need
(transitive) To want strongly; to feel that one must have something.
After ten days of hiking, I needed a shower and a shave.
Need
(modal verb) To be obliged or required (to do something).
You need not go if you don't want to.
Need
(intransitive) To be required; to be necessary.
Need
To be necessary (to someone).
Need
A state that requires supply or relief; pressing occasion for something; necessity; urgent want.
And the city had no need of the sun.
I have no need to beg.
Be governed by your needs, not by your fancy.
Need
Want of the means of subsistence; poverty; indigence; destitution.
Famine is in thy cheeks;Need and oppression starveth in thine eyes.
Need
That which is needful; anything necessary to be done; (pl.) necessary things; business.
Need
Situation of need; peril; danger.
Need
To be in want of; to have cause or occasion for; to lack; to require, as supply or relief.
Other creatures all day longRove idle, unemployed, and less need rest.
Need
To be wanted; to be necessary.
When we have done it, we have done all that is in our power, and all that needs.
Need
Of necessity. See Needs.
Need
A condition requiring relief;
She satisfied his need for affection
God has no need of men to accomplish His work
There is a demand for jobs
Need
Anything that is necessary but lacking;
He had sufficient means to meet his simple needs
I tried to supply his wants
Need
The psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior;
We did not understand his motivation
He acted with the best of motives
Need
A state of extreme poverty or destitution;
Their indigence appalled him
A general state of need exists among the homeless
Need
Require as useful, just, or proper;
It takes nerve to do what she did
Success usually requires hard work
This job asks a lot of patience and skill
This position demands a lot of personal sacrifice
This dinner calls for a spectacular dessert
This intervention does not postulates a patient's consent
Need
Have need of;
This piano wants the attention of a competent tuner
Need
Have or feel a need for;
Always needing friends and money