Meeting relations (8)
I believe the answer is:
congress
I believe this is a double definition.
'meeting' is the first definition.
(congress is a kind of meeting)
'relations' is the second definition.
(synonyms)
(Other definitions for congress that I've seen before include "Meeting of elected or appointed representatives" , "US legislative body" , "Formal meeting" , "US Federal legislature" , "Legislature - large gathering" .)