| leak |
| leakage |
| legion(noun, company, command, multitude, congregation) |
| litter(noun, multitude, congregation, herd, brood) |
| mass(noun, crowd, people, multitude, mob) |
| multitude(noun, crowd, people, mob, congregation) |
| odyssey(noun, trip, voyage, ride) |
| operation(noun, activity, move, action, act) |
| out(noun, break, informal, freedom, departure) |
| peregrination(noun, trip, voyage, ride) |
| quantity(noun, multitude) |
| regression(noun, activity, move, action, act) |
| removal(escape, retreat, going, loss, departure) |
| rise(take-off, volitation) |
| set |
| shoal |
| skein(noun, multitude, congregation, herd, brood) |
| throng(noun, crowd, people, multitude, mob) |
| transit(noun, activity, move, action, act) |
| transport(noun, trip, journey, voyage, flying) |