Specificity (linguistics)

In linguistics, specificity is a semantic feature of noun phrases (NPs) that distinguishes between entities/nouns/referents that are unique in a given context and those that are not. Several distinct known factors determine an entity/noun/referent's relative specificity, including:^[1]

• Singular terms (e.g. proper names)
• Habituality
• Actual/Nonactual moods
• Factivity
• Negation

Specificity does not rely on existence. This is because specificity relies on the uniqueness of an entity, regardless of whether it may or may not actually exist. For example, “I’m looking for a male sister” refers to no actual entity. However, the ambiguity of its specificity (are you looking for a particular male sister, or any male sister?) is retained.^[1]