"What is the meaning of this word?" was marked wrong. Shouldn't that be an acceptable answer?
Well, at the end of the day you are asking more or less the same thing. The problem is that your sentence has its exact opposite in Czech as well.
Jaký je význam tohoto slova?
'what does that word mean' ? Can that and this both be used?
No, they are distinguished. Toto is this, to/tamto is that.
Thanks this helps!