ಅರ್ಥ : Orchestral music played at the beginning of an opera or oratorio.
ಅರ್ಥ : Something that serves as a preceding event or introduces what follows.
ಉದಾಹರಣೆ :
Training is a necessary preliminary to employment.
Drinks were the overture to dinner.
ಸಮಾನಾರ್ಥಕ : preliminary, prelude