nature vs macrocosm

nature and macrocosm both are nouns.

Word	Noun	Adjective	Verb	Adverb
nature	Yes	No	No	No
macrocosm	Yes	No	No	No

As nouns, macrocosm is a hypernym of nature; that is, macrocosm is a word with a broader meaning than nature:

nature: the natural physical world including plants and animals and landscapes etc.
macrocosm: everything that exists anywhere

Other hypernyms of nature include cosmos, creation, existence, universe, world.

nature (noun)	macrocosm (noun)
the complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions	everything that exists anywhere
the essential qualities or characteristics by which something is recognized
a particular type of thing
the natural physical world including plants and animals and landscapes etc.
a causal agent creating and controlling things in the universe