1. noun A formal order, request, or demand to do something. The military issued a requisition to authorize the use of deadly force in the region. I submitted a number of requisitions to have my funding increased.

2. verb To formally order, request, or demand for someone or some group to do something. A noun or pronoun is used between "requisition" and "to." We are requisitioning the government to provide more emergency workers to the regions affected by the hurricanes. I requisitioned the company to cover the expenses I incurred during my time abroad.