Galadriel's death

[Legolas]

Or is it an interpretation: when Cirdan, Gandalf, Galadriel and the hobbits leave Middle-Earth, this departure is considered as a "terrestrial" (arghh) death?

Just a sidenote...Elrond goes with them, not Cirdan. Elrond has one of the three Elven rings. Cirdan no longer has his - he gave it to Gandalf upon Gandalf's arrival. Cirdan stayed there longer - he eventually takes the "last ship" to leave Middle-earth for Aman.