batholith vs pluton

batholith and pluton both are nouns.

Word	Noun	Adjective	Verb	Adverb
batholith	Yes	No	No	No
pluton	Yes	No	No	No

As nouns, batholith and pluton are synonyms defined as:

batholith and pluton: large mass of intrusive igneous rock believed to have solidified deep within the earth

Other synonyms of batholith include batholite, plutonic rock.

batholith (noun)	pluton (noun)
large mass of intrusive igneous rock believed to have solidified deep within the earth	large mass of intrusive igneous rock believed to have solidified deep within the earth