landscape vs ornament

landscape and ornament both are nouns.

Word	Noun	Adjective	Verb	Adverb
landscape	Yes	No	Yes	No
ornament	Yes	No	Yes	No

As verbs, ornament is a hypernym of landscape; that is, ornament is a word with a broader meaning than landscape:

Other hypernyms of landscape include adorn, beautify, decorate, embellish, grace.

landscape (noun)	ornament (noun)
a genre of art dealing with the depiction of natural scenery	something used to beautify
painting depicting an expanse of natural scenery
an extensive mental viewpoint
an expanse of scenery that can be seen in a single view

landscape (verb)	ornament (verb)
do landscape gardening	make more attractive by adding ornament, colour, etc.
embellish with plants	be an ornament to