That

Demonstrative Determiner / Pronoun

That is a demonstrative determiner, it allows you to explain which N you are talking about: that car, that broken cup, that one.

	-ci	-là
celle celui	this one	that one
celles ceux	these (ones)	those (ones)

Subordinating conjunction / complementizer

Introduces a complementary clause. It is very similar to the French word que in function if not in form. One notable exception is in comparisons where English uses than and as rather than that.