session vs recitation

session and recitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
session	Yes	No	No	No
recitation	Yes	No	No	No

As nouns, recitation is a hyponym of session; that is, recitation is a word with a more specific, narrower meaning than session:

Other hyponyms of session include class period, course session.

session (noun)	recitation (noun)
a meeting devoted to a particular activity	systematic training by multiple repetitions
a meeting for execution of a group's functions	a regularly scheduled session as part of a course of study
a meeting of spiritualists	a public instance of reciting or repeating (from memory) something prepared in advance
the time during which a school holds classes	written matter that is recited from memory