Ok well I thought it was what she hears = alien speaking and therefore their language, I didn’t think to break it down like baby goo goo sounds all way to full adult speaking but then even that doesn’t make sense
tadpole = thinking/feeling
Face hugger = thinking/feeling
Chestburster = googoo sounds gibberish?
Xenomorph drone / warrior = actually talks ?
or all are able to mentally speak feel each other out
so she was hearing signals like what they are thinking / feeling ? And that truly equals communication?
or what we are use to hearing the hissing and screams and seeing reactions from the aliens to each other proving actual communication?
It's hard to tell exactly about xenomorph communication / language because we don't see it too often in the films :
Alien : there is only one xenomorph, so we just get the usual attack hisses/shrieks, no discernible language.
Aliens : the hive wakes up when the marines kill/burn the chestburster which shrieks loudly, but that could also simply be from the noise they made so it's not really evidence. The queen is shown hissing and turning her head in the direction of her drones and they back off once Ripley is threatening to burn the eggs, so that could be an example of language.
Alien 3 : again there is only one xenomorph, we see some body language especially in the scene with it coming close to Ripley, but other than that all we get is again the usual hisses and shrieks.
Alien Resurrection : this one has a full-on multi-xenomorph conversation going on in the holding cell, when they decide Xeno-Bob got the short straw and must be killed to make their exit.
AvP : the xenormophs led by Grid go to free the queen, and attack her so her acid blood can break down the chains, it seems she orders them to do it, so that's another example.
AvP Requiem : no particular examples of xeno-language, and the main xeno is a Predalien so it's too different from what we know to really count in my opinion.
Alien Romulus : no particular examples of xeno-language as far as I remember.
So really, if a writer wants to explore the possibility of actual xenomorph language, and even one that could be learned and spoken (though not by a normal human vocal chords), there's enough groundwork to roll with it.
As I understood the show though, Wendy's initial "special noises" she could hear were more like distressed noises from the xeno-embryo. You don't exactly need to speak fluent human baby speech to understand when a human baby has a problem and is crying though. It's only once the xeno has hatched and is growing that she begins to be able to establish some communication with it, but we know almost nothing about it, it could be a very basic language with simple concepts like "kill, hide, ambush, attack", it doesn't mean there's whole conversations going on. When she is cooing at it in its cell, it might just be the equivalent of a human going pspspsps with a cat.