English definition of “this”
/ðɪs/ determiner (plural these)
ALREADY TALKED ABOUT › used to refer to something that you have already talked about: Most people don't agree with this decision. How did you hear about this course?
NEAR › used to refer to something or someone that is near you or that you are pointing to: How much does this CD cost? David gave me these earrings for my birthday.
TIME › used to refer to the present week, month, year, etc or the one that comes next: I'll see you this evening. Kate and Nigel are getting married this June.
NOW TALKING ABOUT informal › used to refer to a particular person or thing that you are going to talk about: I met this guy at a party who knows your sister. We went to this really great club last night. → See also be out of this world