Nullus

Nullus is a Latin adjective and determiner meaning "no" or "none." It governs or modifies a noun, agreeing in gender, number, and case with that noun; for example, nullus liber "no book", nulla res "no thing". It is used to express the absence of a thing or quantity.

Grammar: It is declined in the same way as regular second-declension adjectives: masculine, feminine, and neuter forms in singular and plural. It usually precedes the noun but may appear after "nec" or in idiomatic constructions.

Usage: In classical authors, nullus appears in many contexts, often as a straightforward negator, or in fixed expressions such as Nulla dies sine linea "no day without a line". The word is typically contrasted with nihil "nothing" and nemo "no one" in Latin.

Modern usage: In contemporary Latin, nullus remains common in dictionaries and texts studying classical prose; outside Latin, the English word "null" has a different etymology and is not a direct descendant of nullus.

Related terms: nihil, nemo.