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this (EN)
determiner, pronoun, adverb, interjection

determiner “this”

this
  1. (modifying a noun) refers to something or someone that is close by or currently being discussed
    This book on the table is my favorite novel.
  2. (modifying a time reference) present or immediately upcoming
    I have a dentist appointment this afternoon.

pronoun “this”

this
  1. refers to a specific thing or item that is being pointed out or identified
    This is my grandmother.

adverb “this”

this (more/most)
  1. to the extent indicated
    Hold the rope this tightly to ensure it doesn't slip.

interjection “this”

this
  1. expresses strong approval of what has just been said or written
    ― We should recycle more to save the planet. ― This!