The next time you see the rare event called a double rainbow where two rainbows are visible at once, someone in your group will say what does it mean? as you just did.
Someone/s in your group will then hold forth on their culture's take on the significance of a double rainbow.
As a result of your Duo studies you are now able to say what does it mean in a more elegant manner. By the time you finish the entire Duo tree, you will be able to answer. Even if you don't really know what it means, whatever you answer will sound good.
Even if they are also students of French, unless they have been involved in the kind of deep learning offered by Duo, they will be unsure of the proper use of Ça signifie quoi ? since they are not armed with the personal assurance you have received.
Yes, Ça signifie quoi ? can be used with objects and situations of mystery. Especially double rainbows.
Exactly, they are not the same as you say.
For example, a physicist may get some experimental results, and ask "what does it mean?", since the physicist is looking for the single physical interpertation of the results.
A critic on the other hand may read a novel and ask "what can it mean?", since here the meaning is open to interpertation, and many people will have different thoughts on the matter.
It could be correct if you add the dash between "est" and "ce" for "est-ce", but the other one is the common version and you probably won't hear people say this one. We need to learn the common expressions to fit into French conversation. I think the other way to ask what something means is "Qu'est-ce que cela veut dire?"
Are you sure it didn’t say “What is its meaning?” "What is it meaning?" is incorrect and should be reported. The correct answer is "What does it mean?"
"it's" is the contraction for "it is" so you have "What is it is meaning?" The possessive form is "its".
"What is its meaning?" would be « Quel est son sens ? » or it is more common to say « Qu'est que cela veut dire ? » which is again "What does that mean?" I suppose you could translate yours to « Qu'est qui est la signification? » The fact is the French would not use a possessive adjective here. Perhaps Duo's alternative version was "What is its meaning?"