Holocaust Survivors

Since this is Yom Hashoah I was wondering the following,

Is it appropriate to use the term “Holocaust Survivor” to refer to a child hidden in a Budapest swiss safe house ? Meanwhile, my grandparents went through ghenim in Auschwitz , Buchenwald and Bergen Belsen which is unfathomable (Oct 7 hostages are the closest to that). I get that many are the only eyewitnesses left to tell the story. That’s important and very important. But calling them survivors just cheapens the horrific part of it.

P.S. I get there are poylishars who say any Hungarian never really experienced the gehinim living through 5 years of it plus ghettos nebach. But they were there and suffered too. Its a big leap to say someone never there and just alive then seeing it from afar is a “survivor” . (not to belittle what they went thru)