What is the meaning of need?

noun

• A condition requiring relief.
  • usage: "she satisfied his need for affection"; "God has no need of men to accomplish His work"; "there is a demand for jobs"
  • synonyms: demand
• Anything that is necessary but lacking.
  • usage: "he had sufficient means to meet his simple needs"; "I tried to supply his wants"
  • synonyms: want
• 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.
  • usage: "we did not understand his motivation"; "he acted with the best of motives"
  • synonyms: motivation, motive
• A state of extreme poverty or destitution.
  • usage: "their indigence appalled him"; "a general state of need exists among the homeless"
  • synonyms: indigence, penury, pauperism, pauperization

verb

• Require as useful, just, or proper.
  • usage: "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 postulate a patient's consent"
  • synonyms: necessitate, ask, postulate, require, take, involve, call for, demand
• Have need of.
  • usage: "This piano wants the attention of a competent tuner"
  • synonyms: want, require
• Have or feel a need for.
  • usage: "always needing friends and money"