See muster in Webster's New World Roget's A-Z Thesaurus II
To assemble, prepare, or put into operation, as for war or a similar emergency:
marshal, mobilize, organize, rally. See moveTo bring together:
assemble, call, cluster, collect1, congregate, convene, convoke, gather, get together, group, round up, summon. See collectTo demand to appear, come, or assemble:
call, convene, convoke, send for, summon. See requestTo come together:
assemble, cluster, collect1, congregate, convene, forgather, gather, get together, group. See collectTo release from military duty:
demobilize, discharge, separate. See free, keepA number of persons who have come or been gathered together:
assemblage, assembly, body, company, conclave, conference, congregation, congress, convention, convocation, crowd, gathering, group, meeting, troop. (Informal) get-together. See collectLearn more about muster