Killing (noun)

1. The act of causing the death of a person or animal.
2. A large number of something that is destroyed or sold.

Origin:

Late middle english: from the verb kill (see kill); the adjective dates from the late 18th century.

Examples:

1. The killing of the President was a shock to the nation.
2. The police are investigating a killing in the area.
3. The killing of the animals was necessary to control the population.
4. The stock market saw a killing today.
5. He made a killing in the real estate market.