WordNet sense 1 (the goal intended to be attained (and which is believed to be attainable)):

aim, object, target, object

WordNet sense 2 (the lens or system of lenses in a telescope or microscope that is nearest the object being viewed):

object glass, objective lens, object lens

WordNet sense 3 (serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes):

accusative

WordNet sense 4 (emphasizing or expressing things as perceived without distortion of personal feelings, insertion of fictional matter, or interpretation):

documentary

WordNet sense 5 ((used especially of art) depicting objects, figures,or scenes as seen):

representational

WordNet sense 6 (having no personal preference):

impersonal

WordNet sense 7 (undistorted by emotion or personal bias; based on observable phenomena):

nonsubjective