objective vs objective case

objective and objective case both are nouns.

Word	Noun	Adjective	Verb	Adverb
objective	Yes	Yes	No	No
objective case	Yes	No	No	No

objective (noun)	objective case (noun)
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed	the case of nouns serving as the direct object of a verb
the goal intended to be attained (and which is believed to be attainable)

objective (adjective)	objective case (adjective)
undistorted by emotion or personal bias; based on observable phenomena
serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes
belonging to immediate experience of actual things or events
emphasizing or expressing things as perceived without distortion of personal feelings or interpretation