What Is a Trick, Tricka Hack?

What really is a hack, tip and trick? They all are marketing bugs words. And if it doesn't work understanding, that's fine. I think they're useful as a prompt, nothing more than a prompt, not a rule. Er, it would need to be evidence based. Nd, if it's evidence based, is it an evidence based tip, or is it just good practice here? Where's the difference? Is there a difference?