The killing of any animal -- including rabbits -- for food or food is called "slaughter." If the rabbit is killed because it's very sick or injured, and killing it puts it out of its misery, the term used is "euthanasia" (or, in slang, you "put the rabbit down" or "put the rabbit to sleep"). For any other killing of a rabbit, "killing" is usually the word used. The word "murder" specifically means an unlawful killing and isn't generally used in reference to animals (unless you're trying to make a political point).
Murder
bunnies
brace
A pair of any small game (rabbits, ducks, etc.) is called a brace.
The term warren refers to a colony of rabbits. It can also be used to describe the underground tunnels where a group of rabbits live.
Genocide
The term for cooking is "rabbits," and many people do enjoy rabbit pie. .......................................................... Others think eating rabbits is wrong; rabbits are cute not tasty.
Assassinate is not a term, it's a word. It means a planned murder.
murder or homicide
There are no water rabbits in nature. The term "water rabbit" might refer to the Chinese zodiac; specifically, someone born in 1903, 1951, 1963, or 2011.
In individual cases it would depend on the circumstances.It is not possible to stop murder globally. As murder is a legal term the definition varies with countries, what is considered murder in one place is not necessarily murder in another.
Murder is a legal term not a biblical or religious one. Murder is defined by the legislation of the country concerned and can differ according to the country..