Looking for the meaning or definition of the word that? Here's what it means.
Conjunction
Introducing a clause which is the subject or object of a verb (such as one involving reported speech), or which is a complement to a previous statement.
Introducing a subordinate clause expressing a reason or cause: because, in that.
(now uncommon) Introducing a subordinate clause that expresses an aim, purpose, or goal ("final"), and usually contains the auxiliaries may, might, or should: so, so that.
Introducing — especially, but not exclusively, with an antecedent like so or such — a subordinate clause expressing a result, consequence, or effect.
(archaic or poetic) Introducing a premise or supposition for consideration: seeing as; inasmuch as; given that; as would appear from the fact that.
Introducing a subordinate clause modifying an adverb.
Introducing an exclamation expressing a desire or wish.
Introducing an exclamation expressing a strong emotion such as sadness or surprise.
Determiner
The (thing, person, idea, etc) indicated or understood from context, especially if more remote physically, temporally or mentally than one designated as "this", or if expressing distinction.
Pronoun
(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. [from 9th c.]
The known (thing); used to refer to something just said.
(demonstrative) The aforementioned quality; used together with a verb and pronoun to emphatically repeat a previous statement.
(relative)Which, who; representing a subject, direct object, indirect object, or object of a preposition. [from 9th c.]
(colloquial) Used in place of relative adverbs such as where or when; often omitted.