Leaving what it means to one side, what's with the high-falutin' language?

Apart from his parents, nobody would defend the suspect.

The cost apart, the building will take a lot of time.

Apart from his parents, no one knows him well.

Apart from the cost, the color of the tie doesn't suit me.

Apart from the cost, the dress doesn't suit you.

Joking aside, what do you mean to do?

Joking aside, what are you trying to say?

Joking aside, how are things going?

Apart from the result, your intention was good.

Before everything you should take better care of your health.

Aside from that, is there anything else you want?