Noun

• S: (n) need, demand (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"
• S: (n) need, want (anything that is necessary but lacking) "he had sufficient means to meet his simple needs"; "I tried to supply his wants"
• S: (n) motivation, motive, 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"
• S: (n) indigence, need, penury, pauperism, pauperization (a state of extreme poverty or destitution) "their indigence appalled him"; "a general state of need exists among the homeless"

Verb

• S: (v) necessitate, ask, postulate, need, require, take, involve, call for, demand (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 postulate a patient's consent"
• S: (v) want, need, require (have need of) "This piano wants the attention of a competent tuner"
• S: (v) need (have or feel a need for) "always needing friends and money"

Adverb

• S: (adv) inevitably, necessarily, of necessity, needs (in such a manner as could not be otherwise) "it is necessarily so"; "we must needs by objective"