What are the various ways that "que" (not qué) is used?

Question

There just seems to be so many different ways to use it.

Answer 1

If you look at our dictionary it only lists it as a pronoun, relative pronoun or a conjunction.

que

Many of the uses are sometimes hard to recognize as a common usage:

Exhortation:

Que tenga un buen día.

This is really its everyday use as a relative pronoun introducing a clause.

[Espero ]... Que tenga un buen día.