| climate(situation, status, setting, surroundings) |
| closeness(noun, area, part, block, community) |
| cluster(band, ring, mob) |
| clutter |
| coalition(noun, organization, company, society, union) |
| combination(noun, organization, company, society, union) |
| commonality(noun, people, culture, public, humanity) |
| commonwealth(noun, people, culture, public, humanity) |
| companionship(noun, people, culture, public, world) |
| comradeship(noun, people, culture, public, world) |
| concourse(noun, set, group, crowd, band) |
| conditions(situation, status, setting, surroundings) |
| confederation(noun, organization, company, society, union) |
| conglomerate(noun, business, company, firm, establishment) |
| congregation(noun, set, group, crowd, band) |
| convention(noun, set, group, crowd, band) |
| corps(noun, set, group, crowd, band) |
| corroboree |
| coterie(noun, set, group, crowd, band) |
| crowded(noun, wild) |