Demonstrative adjective

Demonstratives (abbreviated DEM) are words like this and that, used to indicate which entities are being referred to and to distinguish those entities from others. They are typically deictic, their meaning depending on a particular frame of its reference. Demonstratives are often used in spatial deixis (using the context of the physical surroundings of the speaker and sometimes the listener), but also in intra-discourse reference - so called "discourse deixis" (including abstract concepts) or anaphora, 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.

Demonstrative words include demonstrative adjectives or demonstrative determiners, which qualify nouns (as in Put that coat on), and demonstrative pronouns, which stand independently (as in Put that on). The demonstratives in English are this, that, these, those, and the archaic yon and yonder, along with this one or that one as substitutes for the pronoun use of this or that.

Many languages, such as English and Chinese, make a two-way distinction between demonstratives. Typically, one set of demonstratives is proximal, indicating objects close to the speaker (English this), and the other series is distal, indicating objects further removed from the speaker (English that).

Other languages, like Nandi, Spanish, Portuguese, Armenian, Serbo-Croatian, Macedonian, Georgian, Basque, Japanese and Old English make a three-way distinction. Typically there is a distinction between proximal or first person (objects near to the speaker), medial or second person (objects near to the addressee), and distal or third person (objects far from both). Italian also provided for a medial (codesto/codesta for things, costui/costei for people), but it fell out of use in the 19th century (though it's still commonly used in Tuscany). So for example, in Portuguese:

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