definition
(demonstrative) The thing, person, idea, quality, event, action or time indicated or understood from context, especially if more remote geographically, temporally or mentally than one designated as "this", or if expressing distinction.
example
He went home, and after that I never saw him again.
definition
The known (thing); used to refer to something just said.
example
They're getting divorced. What do you think about that?
definition
(demonstrative) The aforementioned quality or proposition; used to emphatically affirm or deny a previous statement or question.
example
The water is so cold! — That it is.
definition
(relative) (plural that) Which, who; representing a subject, direct object, indirect object, or object of a preposition.
example
The CPR course that she took really came in handy.
definition
Used in place of relative adverbs such as where or when; often omitted.
example
the last time that [= when] I went to Europe