Select the option that can be used as a one-word substitute for the given group of words.

Killing of a person by another

Homicide

The option that can be used as a one-word substitute for the given group of words is homicide.

• Homicide means the killing of one human being by another.
• Democide means the killing of a large group of people, especially those of a particular ethnic group or nation.
• Genocide means the deliberate killing of a large group of people, especially those of a particular ethnic group or nation.
• Euthanasia means the act of intentionally ending a person's life to relieve suffering.

Homicide is the most appropriate word for the given group of words because it specifically refers to the killing of one human being by another. It is derived from the Latin words homo, meaning "man," and caedere, meaning "to kill."