| millstone(trouble, concern, strain, weight, load) |
| misfortune(trouble, concern, strain, weight, load) |
| mishap(trouble, concern, strain, weight, load) |
| obstruction(trouble, concern, strain, weight, load) |
| onus(trouble, concern, strain, weight, load) |
| punishment(trouble, concern, strain, weight, load) |
| responsibility(trouble, concern, strain, weight, load) |
| sorrow(trouble, concern, strain, weight, load) |
| task(trouble, concern, strain, weight, load) |
| tax(trouble, concern, strain, weight, load) |
| trial(trouble, concern, strain, weight, load) |
| work(trouble, concern, strain, weight, load) |
| worry(trouble, concern, strain, weight, load) |
| cargo(weight, load) |
| concern(trouble, strain, weight, load, cargo) |
| strain(trouble, concern, weight, load, cargo) |
| trouble(concern, strain, weight, load, cargo) |
| weight(load, cargo) |