1. mechanism
In a machine or piece of equipment, a mechanism is a part, often consisting of a set of smaller parts, which performs a particular.
e.g. A bomb has been detonated by a special mechanism.
2. inheritance
An inheritance is money or property which you receive from someone who has died.
e.g. She feared losing her inheritance to her stepmother.
3. threshold
A threshold is an amount, level or limit on a scale. When the threshold is reach, something else happens or changes.
A tax threshold is the level of income or profit at which you start to pay a tax.
e.g. The sound was so loud it was the threshold of war.
