An object that may or may not have purposes. Or I'll just give you a definition of the word 'this'.
THIS
pronoun
pronoun: this; pronoun: these
1. used to identify a specific person or thing close at hand or being indicated or experienced.
"is this your bag?"
-used to introduce someone or something.
"this is the captain speaking"
-referring to the nearer of two things close to the speaker (the other, if specified, being identified by “that”).
"this is different from that"
2. referring to a specific thing or situation just mentioned.
"the company was transformed, and Ward had played a vital role in bringing this about"
determiner
determiner: this; determiner: these
1. used to identify a specific person or thing close at hand or being indicated or experienced.
"don't listen to this guy"
-referring to the nearer of two things close to the speaker (the other, if specified, being identified by “that”).
"this one or that one?"
2. referring to a specific thing or situation just mentioned.
"there was a court case resulting from this incident"
3. used with periods of time related to the present.
"I thought you were busy all this week"
referring to a period of time that has just passed.
"I haven't left my bed these three days"
4. informal
-used (chiefly in narrative) to refer to a person or thing previously unspecified.
"I turned around, and there was this big mummy standing next to us!"
adverb
adverb: this
1. to the degree or extent indicated.
"they can't handle a job this big"
