objective vs compound microscope

objective and compound microscope both are nouns.

Word	Noun	Adjective	Verb	Adverb
objective	Yes	Yes	No	No
compound microscope	Yes	No	No	No

objective (noun)	compound microscope (noun)
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed	light microscope that has two converging lens systems: the objective and the eyepiece
the goal intended to be attained (and which is believed to be attainable)

objective (adjective)	compound microscope (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