| autoclave(noun, lid) |
| airtight pot(noun, expression, lid, autoclave) |
| pressure(noun, difficulty, burden, demand, weight) |
| adversity(noun, trouble, force, strain, difficulty) |
| affliction(noun, trouble, force, strain, difficulty) |
| albatross(noun, trouble, force, strain, difficulty) |
| burden(noun, trouble, force, strain, difficulty) |
| choke(noun, trouble, force, strain, difficulty) |
| clout(noun, trouble, force, strain, difficulty) |
| coercion(noun, trouble, force, strain, difficulty) |
| compressing(noun, burden, weight, gravity, heaviness) |
| compulsion(noun, trouble, force, strain, difficulty) |
| confinement(noun, trouble, force, strain, difficulty) |
| constraint(noun, trouble, force, strain, difficulty) |
| crunch(noun, trouble, force, strain, difficulty) |
| crushing(noun, burden, weight, gravity, heaviness) |
| demand(noun, trouble, force, strain, difficulty) |
| density(noun, burden, weight, gravity, heaviness) |
| difficulty(noun, trouble, force, strain, burden) |
| digester |