Nulo

Nulo is a term used in several Romance languages to denote absence, invalidity, or zero. It derives from the Latin nullus, meaning “not any,” and appears in Spanish and Portuguese as an adjective and noun with meanings related to null, void, or worthless.

In everyday language, nulo can describe something lacking value or effect, such as a nulo valor or a nulo resultado. It is commonly used in formal or legal contexts to indicate invalidity or lack of effect.

In computing and information technology, the concept of null is central, and nulo is the natural translation in Spanish- or Portuguese-language documentation. A null value represents the absence of a value or a missing reference. In programming languages, a null (or nulo) reference points to no object, while database systems use NULL to signify missing data. The term is often paired with qualifiers like valor nulo to specify the nature of the absence.

In legal and administrative contexts, nulo frequently means that something has no legal validity or effect, such as a contract or act declared nulo.

In mathematics and logic, nulo may be used in some texts to denote a quantity of zero or an empty construct, though many authors prefer more specific terms like cero, vacío, or conjunto vacío depending on the context.

Related terms include null, nil, and zero.