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Definition of requirement:

  1. That which is required; an imperative or authoritative command; an essential condition; something needed or necessary; a need.
  2. The act of requiring; demand; requisition.


essential, extremity, urgency, necessary, want, obsession, engrossment, exigency, prepossession, lack, demand, requisition, pinch, call, desideratum, fatality, qualification, preoccupation, stress, destiny, indispensability, element, necessity, terms, reservation, prerequisite, basis, fate, precondition, sine qua non, indispensableness, fundamental, exaction, claim, provision, emergency, requisite, specification, unavoidableness.

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