When your new band gives its first ever performance, this is an example of debut.
An example of a debut is the launch of a new product where the product is introduced to the world for the first time.
An automobile company that will debut a new hybrid model next fall; a series that debuted on network television.
Since making its debut two years ago, the program has gained cult status.
Amalgamated Software Systems debuted release 3.2 in Spring of 2004.
Release 3.2 debuted to mixed reviews in Spring of 2004.
The debut of a new foreign policy.