Thread:Tlaqh1335/@comment-3261439-20200715104441/@comment-46173343-20200715145725

So it appears that the term "Giant" firstly means "a being of enormous size," but it can secondarily refer to "powerful beings who are enemies of the gods" in polytheistic religions like Greco-Roman or Norse religion.

I would say that all Jötunn are "Giants" in the second sense, while some Jötunn are "Giants" in the first (or literal) sense.