Summons
Part of speech: noun
Definition: A call to do something, especially to come. A notice summoning someone to appear in court, as a defendant, juror or witness.
Part of speech: verb
Definition: To serve someone with a summons. To serve someone with a summons.
Subpoena
Part of speech: noun
Definition: A writ requiring someone to appear in court to give testimony.
Part of speech: verb
Definition: To summon with a subpoena.