What is the meaning of Että?

that (conjunction indicating that the subordinate clause is the object of the verb of the main clause)

that (introducing a subordinate clause expressing a result, consequence or effect)

that (introducing a subordinate clause expressing a reason or cause)

because

in order to, to, so that, that (as a means of achieving the specified end)

that (introducing a subordinate clause modifying an adjective or adverb)

that (introducing a direct or an indirect quotation)

Used to introduce subordinate interrogative clauses.

Used to introduce a clause, particularly when asking to confirm something someone else said, or when expressing a conclusion one has come to.

that (introducing an exclamation expressing a strong emotion such as sadness or surprise)

second-person plural present of ei

partitive singular of esi

Source: wiktionary.org