this

/ðɪs/ adj, pronoun (plural these /ðiz/) (THING REFERRED TO)

Definition

› used for a person, object, or thing to show which one is referred to or has been referred to before: This book is mine – yours is over there. Try on these sunglasses to see how you look in them. If you wear the scarf like this, it will look better. infml So I said to this guy, "Do I know you?" › This also refers to something that is nearest to the speaker in time and sometimes in space: I’ve got to see the doctor again this Thursday. By this time tomorrow, I’ll be in Paris. this is › People say this is to introduce someone: Harry, this is Joan. this minute (also this second) › This minute or this second means now: It doesn’t have to be done this minute, but it should be done before lunch.

(Definition of this adj, pronoun (THING REFERRED TO) from the Cambridge Academic Content Dictionary © Cambridge University Press)