Synonyms and related words :
ask, call, call away, call back, call for, call forth, call in, call out, call together, call up, cite, conjure, conjure up, convene, convoke, demand, evoke, indent, invite, invoke, issue an invitation, muster, muster up, order up, page, preconize, recall, requisition, send after, send for, serve, subpoena, summon, summon forth, summon up, summons,