Definition of: this

(this) adjective pl these
1. That is near or present, either actually or in thought: This house is for sale; I shall be there this evening.
2. That is understood or has just been mentioned: This offense justified my revenge.
3. That is nearer than or contrasted with something else: opposed to that: This tree is still alive, but that one is dead; He ran this way and that.
4. These: used of a number or collection considered as a whole: He has been dead this fourteen nights.
—pron.
1. The person or thing near or present, being understood or just mentioned: This is where I live; This is the guilty man.
2. The person or thing nearer than or contrasted with something else: opposed to that: This is a better painting than that.
3. The idea, statement, etc., about to be made clear: I will say this: he is a hard worker.
—adverb To this degree; thus or so: I was not expecting you this soon. [OE]