Nouns

(n)sessiona meeting for execution of a group's functions“it was the opening session of the legislature”
(n)school term, academic term, academic session, sessionthe time during which a school holds classes“they had to shorten the school term”
(n)sessiona meeting devoted to a particular activity“a filming session”, “a gossip session”
(n)seance, sitting, sessiona meeting of spiritualists“the seance was held in the medium's parlor”