need

I (deprivation) noun absence, dearth, deficiency, deficit, demand, exigency, extremity, inadequacy, incompleteness, indigence, insufficiency, lack, necessitousness, necessitude, necessity, paucity, penury, privation, scantiness, scarcity, shortage, shortness of supply, thirst, vacuum, want, wantage II (requirement) noun compulsion, compulsory detail, crucial part, demand, desideration, desideratum, essential element, essentiality, essentialness, fundamental, highly important detail, indispensability, indispensable provision, integral part, irreplaceability, irreplaceable feature, mandatory factor, necessary, necessary attribute, necessary component, necessity, obligation, precondition, preliminary condition, prequisiteness, prerequirement, proviso, required item, requisite, requisiteness, strategic item, urgency, urgent requirement, vital part, vitalness III verb claim, clamor for, crave, cry for, demand, desire, exact, feel the necessity for, feel the want of, find indispensable, find necessary, have an urge for, have need for, have occasion for, have use of, hunger for, long for, lust for, miss, require, thirst for, want, yearn for IV index absence (omission), compulsion (obsession), contribution (indemnification), dearth, deficiency, desideratum, emergency, entail, exigency, foible, force (compulsion), indigence, insufficiency, lack, market (demand), necessary, necessity, paucity, poverty, prerequisite, pressure, privation, requirement, requisition, stress (strain)