Definition of benches:
(n) :
A long seat with or without a back, found for example in parks and schools.
(n) :
(sports) The place where players (substitutes) and coaches sit when not playing.
(n) :
(law) The seat where the judges sit in court.
(n) :
(law, figuratively) The people who decide on the verdict, collectively; the judiciary.
(n) :
A seat where people sit together in an official capacity.
(n) :
(government) A long seat for politicians in a parliamentary chamber.