1. past tense and past participle of summon; called to come or appear, especially officially or formally

Examples

• The witness was summoned to appear in court next Tuesday.
• She summoned all her courage before giving the speech.
• The principal summoned the students to his office.
• He summoned the waiter with a wave of his hand.
• The emergency meeting summoned all department heads.
• They summoned help when they saw the accident.
• The king summoned his advisors to discuss the crisis.