A chancery is a place where gambling occurs.
The new Colonial refugees, having recently escaped their worlds' destruction, encounter a chancery on the surface of Carillon. This chancery is remarkable in that, unlike other chanceries, the players can't lose.
The situation is too good to be true, however, when it turns out that the chancery is a lure that the Ovions use to capture and consume people.
The Rising Star is equipped with a chancery. Starbuck tries out a new pyramid system at this chancery, using a week's salary for himself and Apollo as his stake. He ends up meeting Chameleon at the chancery, and the two immediately make a connection (TOS: "The Man with Nine Lives").
- Obviously, chanceries are similar to real world casinos.