As used in
philosophy, in general, an
object is something that can have
properties and
relations. Hence a particular object is, basically, either a particular material
body or a particular
mind--or, on a
neutral monist view, a particular that can be viewed under both physical and mental aspects.
Objects are often treated as types of particulars, but occasionally, philosophers see fit to speak of abstract objects[?]--Platonic forms[?] would be an example.
Much, much more at objecthood