›a legal document ordering someone to appear in a court of law or to produce documents: issue/receive/serve a subpoenasubpoena for sthThe company received subpoenas for documents and testimony about its marketing practices worldwide
subpoena power›the power of a court, committee, etc. to order someone to appear and give evidence or documents to be produced: give/grant/have subpoena powerFederal mine safety officials have subpoena power similar to other federal agencies.