The grammatical relation between two words that have a common referent

Wiktionary Word definitions in Wiktionary
n. (context grammar English) The relationship between multiple terms that have a common referent

Wikipedia Word definitions in Wikipedia
In linguistics , coreference , sometimes written co-reference , occurs when two or more expressions in a text refer to the same person or thing; they have the same referent , e.g. Bill said he would come ; the proper noun Bill and the pronoun he refer to ...

WordNet Word definitions in WordNet
n. the grammatical relation between two words that have a common referent