an authoritative command, message, or signal by which one is summoned.

a request, demand, or call to do something

a summons to surrender.

Law .

a call or citation by authority to appear before a court or a judicial officer.

the writ by which the call is made.

an authoritative call or notice to appear at a specified place, as for a particular purpose or duty.

a call issued for the meeting of an assembly or parliament.

to serve with a summons; summon.

noun

call , citation , notification , process , requisition , subpoena , writ