ergativity

This term is a highly specialized linguistic descriptor used almost exclusively in academic, descriptive, and theoretical contexts. It describes a specific alignment of grammatical relations that contrasts with the nominative-accusative alignment found in languages like English. Because it refers to a systemic property of a language's grammar, it is used as a technical label rather than a descriptive adjective in general conversation.

As an abstract noun denoting a linguistic property, it is uncountable. It does not take a plural form and is typically used without an indefinite article when referring to the general concept, though it may be preceded by a definite article when referring to the specific ergativity of a particular language.