this this /ðɪs/

pronoun

1. () Used to specify or emphasize a particular person, object, or concept.  ( this )
   Used to specify or emphasize a particular person, object, or concept.
   
2. () Used to differentiate one particular thing from another.  ( this )
   Used to differentiate one particular thing from another.
   
3. () Referring back to a previously mentioned concept or thing.  ( such , this )
   Referring back to a previously mentioned concept or thing.