Meaning of that in English
1. used to indicate a person, place, or thing present or already mentioned
She made that cake yesterday.
2. used to indicate a person or thing farther away than or contrasted with another thing; the one there
This cake is his, and that one is mine.
Conjunction
1. used to introduce a noun clause in a sentence, often omitted
I think (that) it is not good.
2. used to introduce an appositive clause in a sentence, rarely omitted
There is no proof that the story is true.
3. used to show a reason or cause
I'm sorry that I can't join it.
4. ｟so[such a] … that ~; (,) so that｠ used to introduce an adverbial clause of result or consequence; with the result that
I'm so tired that I can't walk any further. ー I am very tired, so (that) I can't walk any further.
5. ｟so that｠ used to introduce an adverbial clause of purpose, sometimes omitted; with the purpose that
I woke up early so that I could catch the first train.
6. used to introduce an adverbial clause of reason or cause
Are you mad that you should do such a thing.
7. ｟it is adv that …｠ used to introduce an emphatic clause
It was only yesterday that I met her.
1. a person or thing mentioned or indicated
That was a delicious cake.
2. a thing farther away than or contrasted with another thing
This is a chocolate cake, and that is a banana cake.
1. ｟in restrictive use｠ used to introduce a clause that defines a word before it
I took a bite of the cake that he baked.
2. at, in, or on which; when, why, or where
This is the reason that I don't like cat.
3. ｟it is n that …｠ used to introduce an emphatic clause
It is your decision that matters. ー Your decision is very important.