Requisition/ˌrekwɪˈzɪʃn/ Definition 1 of 4Pro Tip 1/3Business Formality Used in a professional setting; it's formal and shows an official need for items or services. A requisition for ergonomic chairs was submitted to HR. Pro Tip 2/3Specific Need Implies a clear and specific request, not vague or general. The requisition listed the exact models of the computers needed. Pro Tip 3/3Approval Required A requisition often needs approval from someone in authority before being fulfilled. Once the requisition is approved, we can order the new software.