Meeting (3-8)
'meeting' is the definition.
(synonyms)
This is all the clue.
(Other definitions for get-together that I've seen before include "An informal party" , "Informal meeting" , "informal social gathering" , "Assemble" .)
'meeting' is the definition.
(I know that conference is a type of meeting)
This is all the clue.
(Other definitions for conference that I've seen before include "synod?" , "A chance to discuss" , "Assembly for discussion" , "fruit" , "Meeting for discussion - type of pear" .)
'meeting' is the definition.
(I know that meeting can be written as encounter)
This is all the clue.
(Other definitions for encounter that I've seen before include "battle" , "Come upon, meet" , "See 19" , "Run into - combat" , "Come accross, meet (9)" .)
'meeting' is the definition.
('gather' can be a synonym of 'meet')
This is all the clue.
(Other definitions for gathering that I've seen before include "Understanding - crowd" , "convention?" , "bee" , "Assembly or concentration" , "party" .)
'meeting' is the definition.
(I know that session is a type of meeting)
This is the entire clue.
(Other definitions for session that I've seen before include "Studio recording period" , "Time in legislature" , "Bout" , "Fifty minutes lying on a couch" , "Time for work" .)