student vs assimilator

student and assimilator both are nouns.

Word	Noun	Adjective	Verb	Adverb
student	Yes	No	No	No
assimilator	Yes	No	No	No

As nouns, student and assimilator are synonyms defined as:

student and assimilator: someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs

Other synonyms of student include learner, scholar.

student (noun)	assimilator (noun)
a learner who is enrolled in an educational institution	someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs
someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs