Before revision: Whether it is used to convey "absolute" as in "dead ahead,", "dead" in that the object is assumed not to have changed course, or reckoning using other objects that are "dead in the water," is not known.
After revision: position orWhether it is used to convey "absolute" as in "dead ahead,", "dead" in that the object is assumed not to have changed course, or reckoning using other objects that are "dead in the water," is not known.