Need and want are two different terms with different use and different meanings. The things that are necessary and without them your survival is in danger are your needs. The things for whom you have the desire to attain for your comfort and on the basis of your liking are your wants. In some cases your need and want may be the same.
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.
Want
To have a strong feeling to have (something); wish (to possess or do something); desire greatly
She wants a glass of water. They want to leave.
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).
Want
To desire (someone to do something)
I want you to clean your room.
Need
Necessity; obligation
There is no need for you to go.
Want
To request the presence or assistance of
You are wanted by your office.
Need
A condition of poverty or misfortune
The family is in dire need.
Want
To seek with intent to capture
The fugitive is wanted by the police.
Need
To be under the necessity of or the obligation to
They need not come. You needn't be concerned.
Want
To have an inclination toward; like
Say what you want, but be tactful.
Need
To have need of; require
The family needs money. We need to get some more paint.
Want
(Informal) To be obliged (to do something)
You want to be careful on the ice.
Need
To have an obligation (to do something)
You need to clean up your room.
Want
To be in need of; require
"'Your hair wants cutting,' said the Hatter" (Lewis Carroll).
Need
To be subject (to an action) by obligation
Bags need to be stowed underneath the seat in front of you.
Need
To want to be subject to
We don't need another lecture on the subject.
Want
To be inclined or desirous; wish
Call me daily if you want.
Need
To be in need or want.
Want
The condition or quality of lacking something usual or necessary
Stayed home for want of anything better to do.
Want
Pressing need; destitution
Lives in want.
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.
Want
Something desired
A person of few wants and needs.
Need
Lack of means of subsistence; poverty; indigence; destitution.
Want
A defect of character; a fault.
Need
(transitive) To have an absolute requirement for.
Living things need water to survive.
Want
(transitive) To wish for or desire (something); to feel a need or desire for; to crave or demand.
What do you want to eat?
I want you to leave.
Never wanted to go back to live with my mother.
Need
(transitive) To want strongly; to feel that one must have something.
After ten days of hiking, I needed a shower and a shave.
Want
(by extension) To make it easy or tempting to do something undesirable, or to make it hard or challenging to refrain from doing it.
The game developers of Candy Crush want you to waste large, copious amounts of your money on in-game purchases to buy boosters and lives.
Depression wants you to feel like the world is dark and that you are not worthy of happiness. The first step to making your life better from this day forward is to stop believing these lies.
Need
(modal verb) To be obliged or required (to do something).
You need not go if you don't want to.
Want
To wish, desire, or demand to see, have the presence of or do business with.
Ma’am, you are exactly the professional we want for this job.
Danish police want him for embezzlement.
Need
(intransitive) To be required; to be necessary.
Want
(intransitive) To desire (to experience desire); to wish.
You can leave if you want.
Need
To be necessary (to someone).
Want
To lack and be in need of or require (something, such as a noun or verbal noun).
That chair wants fixing.
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.
Want
To have occasion for (something requisite or useful); to require or need.
Need
Want of the means of subsistence; poverty; indigence; destitution.
Famine is in thy cheeks;Need and oppression starveth in thine eyes.
Want
To be lacking or deficient or absent.
There was something wanting in the play.
Need
That which is needful; anything necessary to be done; (pl.) necessary things; business.
Want
To be in a state of destitution; to be needy; to lack.
The paupers desperately want.
Need
Situation of need; peril; danger.
Want
To lack and be without, to not have (something).
She wanted anything she needed.
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.
Want
To lack and (be able to) do without.
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.
Want
(countable) A desire, wish, longing.
Need
Of necessity. See Needs.
Want
Lack, absence, deficiency.
A want of sense.
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
Want
(uncountable) Poverty.
Need
Anything that is necessary but lacking;
He had sufficient means to meet his simple needs
I tried to supply his wants
Want
Something needed or desired; a thing of which the loss is felt.
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
Want
A depression in coal strata, hollowed out before the subsequent deposition took place.
Need
A state of extreme poverty or destitution;
Their indigence appalled him
A general state of need exists among the homeless
Want
(dialectal) A mole (Talpa europea).
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
Want
The state of not having; the condition of being without anything; absence or scarcity of what is needed or desired; deficiency; lack; as, a want of power or knowledge for any purpose; want of food and clothing.
And me, his parent, would full soon devourFor want of other prey.
From having wishes in consequence of our wants, we often feel wants in consequence of our wishes.
Pride is as loud a beggar as want, and more saucy.
Need
Have need of;
This piano wants the attention of a competent tuner
Want
Specifically, absence or lack of necessaries; destitution; poverty; penury; indigence; need.
Nothing is so hard for those who abound in riches, as to conceive how others can be in want.
Need
Have or feel a need for;
Always needing friends and money
Want
That which is needed or desired; a thing of which the loss is felt; what is not possessed, and is necessary for use or pleasure.
Habitual superfluities become actual wants.
Want
A depression in coal strata, hollowed out before the subsequent deposition took place.
Want
To be without; to be destitute of, or deficient in; not to have; to lack; as, to want knowledge; to want judgment; to want learning; to want food and clothing.
They that want honesty, want anything.
Nor think, though men were none,That heaven would want spectators, God want praise.
The unhappy never want enemies.
Want
To have occasion for, as useful, proper, or requisite; to require; to need; as, in winter we want a fire; in summer we want cooling breezes.
Want
To feel need of; to wish or long for; to desire; to crave.
I want to speak to you about something.
Want
To be absent; to be deficient or lacking; to fail; not to be sufficient; to fall or come short; to lack; - often used impersonally with of; as, it wants ten minutes of four.
The disposition, the manners, and the thoughts are all before it; where any of those are wanting or imperfect, so much wants or is imperfect in the imitation of human life.
Want
To be in a state of destitution; to be needy; to lack.
You have a gift, sir (thank your education),Will never let you want.
For as in bodies, thus in souls, we findWhat wants in blood and spirits, swelled with wind.
Want
A state of extreme poverty
Want
The state of needing something that is absent or unavailable;
There is a serious lack of insight into the problem
Water is the critical deficiency in desert regions
For want of a nail the shoe was lost
Want
Anything that is necessary but lacking;
He had sufficient means to meet his simple needs
I tried to supply his wants
Want
A specific feeling of desire;
He got his wish
He was above all wishing and desire
Want
Feel or have a desire for; want strongly;
I want to go home now
I want my own room
Want
Have need of;
This piano wants the attention of a competent tuner
Want
Wish or demand the presence of;
I want you here at noon!
Want
Hunt or look for; want for a particular reason;
Your former neighbor is wanted by the FBI
Uncle Sam wants you
Want
Be without, lack; be deficient in;
Want courtesy
Want the strength to go on living
Flood victims wanting food and shelter
The things that are necessary and without them your survival is in danger are your needs. Needs are things that you must have to. Food is the basic need of us. We can’t live without food. Water is also a need of us, without water we cannot survive for long. Oxygen is also a need of us, without oxygen we even can’t survive for 3 minutes. The basic necessities of life are the needs. Shelter or a house to live is a need.
The things for whom you have the desire to attain for your comfort and on the basis of your liking are your wants. Want is your wish for something which is not necessary but is good to have. You may wish to have a Mercedes, it is your want. You like ice cream and want to eat it. Ice cream is a food but not necessary for survival. It is your want to eat ice cream as you like its taste.