These

pronoun, adjective
1.
plural of this.
pronoun, plural these
[th eez] /ðiz/ (Show IPA)
1.
(used to indicate a person, thing, idea, state, event, time, remark, etc., as present, near, just mentioned or pointed out, supposed to be understood, or by way of emphasis):
This is my coat.
2.
(used to indicate one of two or more persons, things, etc., referring to the one nearer in place, time, or thought; opposed to that):
This is Liza and that is Amy.
3.
(used to indicate one of two or more persons, things, etc., implying a contrast or contradistinction; opposed to that):
I’d take that instead of this.
4.
what is about to follow:
Now hear this! Watch this!
adjective, plural these
[th eez] /ðiz/ (Show IPA)
5.
(used to indicate a person, place, thing, or degree as present, near, just indicated or mentioned, or as well-known or characteristic):
These people are my friends. This problem has worried me for a long time.
6.
(used to indicate the nearer in time, place, or thought of two persons, things, etc.; opposed to that).
7.
(used to imply mere contradistinction; opposed to that).
8.
(used in place of an indefinite article for emphasis):
I was walking down the street when I heard this explosion.
adverb
9.
(used with adjectives and adverbs of quantity or extent) to the extent or degree indicated:
this far; this softly.
Idioms
10.
with this, following this; hereupon:
With this, he threw down his glass and left the table.
determiner
1.

the form of this used before a plural noun: these men
(as pronoun): I don’t much care for these

determiner (used before a sing noun)
1.

used preceding a noun referring to something or someone that is closer: distinct from that: this dress is cheaper than that one, look at this picture
(as pronoun): this is Mary and that is her boyfriend, take this

2.

used preceding a noun that has just been mentioned or is understood: this plan of yours won’t work
(as pronoun): I first saw this on Sunday

3.

used to refer to something about to be said, read, etc: consider this argument
(as pronoun): listen to this

4.

the present or immediate: this time you’ll know better
(as pronoun): before this, I was mistaken

5.
(informal) often used in storytelling, an emphatic form of a1 , the1 I saw this big brown bear
6.
this and that, various unspecified and trivial actions, matters, objects, etc
7.
(US, not standard) this here, an emphatic form of this (sense 1), this (sense 2), this (sense 3)
8.
with this, at this, after this; thereupon
adverb
9.
used with adjectives and adverbs to specify a precise degree that is about to be mentioned: go just this fast and you’ll be safe
third wheel
see: one of these days