Demonstrative
In linguistics, demonstratives are deictic words (they depend on an external frame of reference) that indicate which entities a speaker refers to and distinguishes those entities from others. Demonstratives are employed for spatial deixis (using the context of the physical surroundings of the speaker and sometimes the listener) and for discourse deixis (including abstract concepts) where the meaning is dependent on something other than the relative physical location of the speaker, for example whether something is currently being said or was said earlier.
The demonstratives in English are this, that, these, those, yonder, and the archaic yon, along with this one or that one as substitutes for the pronoun use of this or that.
Read more about Demonstrative: Distal and Proximal Demonstratives, Demonstrative Series in Other Languages, Demonstrative Determiners and Pronouns, Demonstrative Adverbs, Discourse Deixis