The term OPERA DIVISION can be broken down into two crossword solutions: ACTE (4 letters) and ACT (3 letters). ACTE stands for 'Acting, Costuming, Technical Elements', which are the three main components of a theatrical production. ACT stands for 'Acting, Costumes, and Technical', which are the three main elements of a theatrical performance. Both terms refer to the division of labor in an opera production, with each element being handled by a different group of people.