debut

As a noun debut

is debut.

As a verb unveil is

to remove a veil from; to divest of a veil; to uncover; to disclose to view; to reveal.

As a noun debut

is debut.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun debut

is debut.

As a verb released is

(release).

As a noun debut

is debut.

As a verb debuting is

.

As a noun debut

is debut.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between inauguration and debut

is that inauguration is the act of inaugurating, or inducting into office with solemnity; investiture by appropriate ceremonies while debut is a performer's first-time performance to the public.

As a verb debut is

to formally introduce, as to the public.

Commencement is a related term of debut.

As nouns the difference between commencement and debut

is that commencement is the first existence of anything; act or fact of commencing; rise; origin; beginning; start while debut is debut.

As nouns the difference between inaugural and debut

is that inaugural is an inauguration; a formal beginning while debut is a performer's first-time performance to the public.

As an adjective inaugural

is of inauguration; as in a speech or lecture by the person being inaugurated.

As a verb debut is

to formally introduce, as to the public.

As verbs the difference between refute and debut

is that refute is to prove (something) to be false or incorrect while debut is to formally introduce, as to the public.

As a noun debut is

a performer's first-time performance to the public.

As nouns the difference between heyday and debut

is that heyday is a period of success, popularity, or power; prime while debut is a performer's first-time performance to the public.

As an interjection heyday

is a lively greeting.

As a verb debut is

to formally introduce, as to the public.