the thing or idea just mentioned

After that he went to bed

That is a lie!

a relatively distant person or thing introduced for observation or discussion

Those are chestnuts and these are elms

Who is that?

the kind or thing specified as follows

The purest water is that produced by distillation

We only picked those ripe enough to eat

(in pl) people

There are those who think the time has already come

used to indicate emphatic agreement with or confirmation of an idea previously presented

Is he a good worker? He is that

denoting the person, thing, or idea specified, mentioned, or understood

That painting he sold me was a fake

denoting the one farther away or less immediately under consideration

This chair or that one?

used to introduce a noun clause, e.g. as subject, object, or complement of a verb

He said that he was afraid

It is unlikely that he'll be in

used to introduce a subordinate clause expressing purpose, reason, or result

They died that we might live

She walked so fast that we couldn't keep up

used to introduce an exclamation, or to express a wish

That it should come to this!

Oh, that he would come!

used to introduce a restrictive relative clause identifying or characterizing a particular person, thing, or group

It was George that told me

The book that you want is on the table

at, in, on, by, with, for, or to which

the reason that he came

the way that he spoke

to the extent indicated or understood

a nail about that long

(usu with the negative) very; extremely

It's not that expensive

Brit, informal to such an extreme degree

I'm that hungry I could eat a horse