Acronyms that contain the term res nullius 

Res nullius

Res nullius (lit: nobody's thing) is a Latin term derived from private Roman law whereby res (an object in the legal sense, anything that can be owned, even a slave, but not a subject in law such as a citizen nor land) is not yet the object of rights of any specific subject. Such items are considered ownerless property and are free to be acquired by means of occupatio. Its usage as a legal concept continues in modern civilian legal systems. Examples of res nullius in the socio-economic sphere are wild animals (ferae naturae) or abandoned property (res derelictae). Finding can also be a means of occupation (i.e. vesting ownership), since a thing completely lost or abandoned is res nullius, and therefore belonged to the first taker. Specific legislation may be made, e.g. for beachcombing.

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