that

that [ ðæt ] function word ***

That can be used in the following ways:

as a determiner (followed by a noun):

Give me that hammer.

as a demonstrative pronoun (without a following noun):

Who gave you that?

as a conjunction (connecting two clauses):

I didn't know that she was married.

as a relative pronoun (forming the subject, object, or complement of a relative clause):

It's a song that my mother taught me.

as an adverb (before an adjective or adverb):

Three years? I can't wait that long.

1. ) (plural those [ ðouz ]) the one that is known about

a ) used when you are referring to someone or something that has already been mentioned:

I know there's a problem, but I haven't got time to worry about that now.

No, I'm not in love with Ken. Where did you get that idea?

It was a secret that's why they never talked about it.

Why don't you ask Carmen? That's who I'd choose.

b ) SPOKEN used for referring to someone or something that the person you are speaking to already knows about:

The engine's started making that noise again.

Why don't you invite that nice Mr. Clifford?

The children used to love those old Charlie Chaplin films.

Wasn't that the boss's wife you were talking to just now?

2. ) (plural those [ ðouz ]) the one that you are looking at SPOKEN

a ) used for referring to someone or something that is not very near to you but that you can see or point at:

That's Jerry's car, over there.

This is my towel and that's yours.

I'm taking these cookies to the neighbor's, but you can have some of those.

Where did that stain on the carpet come from?

Do you know who that woman over there is?

b ) used for referring to something that the person you are talking to is holding or wearing:

I like that jacket. It looks good on you.

What's that you're holding?

3. ) (plural those [ ðouz ]) a past time or event

a ) used for referring to a period, event, or experience in the past:

There were no telephones in those days.

Remember that time we all went to the lake?

He once played football, but that was a long time ago.

b ) used for referring to something that has just happened:

That was fun. We'll have to do it again some time.

4. ) (plural those [ ðouz ]) a specific one used when you are saying which person or thing you are referring to:

All the details were in that letter I sent you last week.

Those who could not walk were left to die by the roadside.

that of: The voice was that of an elderly woman.

5. ) => NOTE [ strong ðæt, weak ðət ] used for introducing a statement, idea, fact, or reason

a ) used for introducing what someone says, thinks, believes, etc.:

Dawkins believes that his sister was murdered.

There had been some suggestion that I should resign.

b ) used for introducing a CLAUSE stating a fact:

We cannot ignore the fact that there is a shortage of qualified nurses.

That no one remembered her birthday left Marta very depressed.

it is surprising/interesting/important that: It was surprising that no one had warned them of the danger.

c ) used when explaining why someone feels sad, angry, happy, etc.:

I'm sorry that I missed the first meeting.

I am absolutely delighted that we achieved what we set out to do.

6. ) => NOTE [ strong ðæt, weak  ðət ] used instead of which, who, or whom

a ) used for introducing a CLAUSE that shows which person or thing you are talking about, or that gives more information about a specific person or thing:

We haven't met the people that live next door.

Think of all the things that have happened to us since we moved here.

We have built a structure that should last for hundreds of years.

I want a car that's reliable.

b ) used after a SUPERLATIVE for stating in what situation the superlative is true:

It was the worst winter that anyone could remember.

Davis is the most brilliant man that I've ever worked with.

c ) used after a word such as all, everything, anyone, or none :

There was no one that I could ask for help.

Is there anything else that you want to ask?

7. ) => NOTE [ strong ðæt, weak  ðət ] used for introducing a result used after so or such to show the result of something:

It was so cold that the lake froze in some places.

In the morning he had such a headache that he could not even drink his coffee.

8. ) the person you are talking to SPOKEN used for asking who someone is when you are telephoning them:

Hello, is that Robert Hoffman? My name is Richard Anderson.

9. ) used for showing how big or how much SPOKEN used when you use your hands to show how big something is or how much of it there is:

I need a piece of rope about that long.

There was only that much left in the bottle.

10. ) => NOTE very usually in negatives or questions MAINLY SPOKEN to a very great degree:

There's no need to rush around it isn't that urgent.

I know some people left before the end, but was it really that bad?

and all that SPOKEN

used for saying that you could add other things to the ones you have mentioned:

When I was a kid. I was crazy about judo, karate, kung fu, and all that.

at that

used after adding a remark that makes what you had said before even more extreme:

There were a number of problems to be dealt with, and fairly complicated ones at that.

that is (to say)

1. ) used when explaining more clearly what you have just said:

Some wines have proprietary names that is to say, their names were created by the producers.

2. ) used when you are going to correct something that you have just said:

I've always enjoyed my work that is, I did until this new manager arrived.

that's it/that does it SPOKEN

used when a series of situations has made you angry, so that you decide to leave or stop what you are doing:

That's it! I'm not staying here to be insulted.

that's that SPOKEN

used for saying that something has been finished or finally decided:

It's no use arguing. She's made up her mind and that's that.

=> THIS