What is the definition of this?

Answer 1

Determinerthis (plural these)

1. The (thing) here (used in indicating something or someone nearby). This classroom is where I learned to read and write.
2. The known (thing) (used in indicating something or someone just mentioned). They give the appearance of knowing what they're doing. It's this appearance that lets them get away with so much.
3. The known (thing) (used in indicating something or someone about to be mentioned). When asked what he wanted for his birthday, he gave this reply: "[…]"
4. A known (thing) (used in first mentioning a person or thing that the speaker does not think is known to the audience). I met this woman the other day who's allergic to wheat. I didn't even know that was possible!