集団【しゅうだん】
group, mass
集会【しゅうかい】
meeting, assembly, gathering, congregation, convention, rally
編集【へんしゅう】
editing, compilation
集中【しゅうちゅう】
concentration (on a task), focusing one's attention, concentration (of population, buildings, power, etc.), centralization, convergence, focus (of a debate, questions, etc.), within a collection of works
募集【ぼしゅう】
recruitment, invitation, selection, advertisement, taking applications, raising (funds, donations, etc.), collection, subscription, solicitation, flotation (of shares, loans, etc.)
収集【しゅうしゅう】
collecting, accumulating, gathering, collection (of art, stamps, insects, etc.), garbage collection, waste collection
特集【とくしゅう】
feature (e.g. newspaper), special edition, report
集める【あつめる】
to collect, to assemble, to gather
召集【しょうしゅう】
convening, calling together (e.g. parliament), call-up (for military service)
集まり【あつまり】
gathering, meeting, assembly, collection, attendance
集合【しゅうごう】
meeting up, gathering, assembly, set
全集【ぜんしゅう】
complete works, complete collection, complete series
集落【しゅうらく】
settlement, village, community, town, (bacterial) colony
詩集【ししゅう】
poetry anthology, collection of poems, collected poems
密集【みっしゅう】
crowding together, clustering together, close formation, swarm
集金【しゅうきん】
money collection
集まる【あつまる】
to gather, to collect, to assemble
採集【さいしゅう】
collecting, gathering
集う【つどう】
to meet, to assemble, to congregate
寄せ集め【よせあつめ】
mishmash, miscellany, medley, jumble, mixture, odds and ends