starter vs contestant

starter and contestant both are nouns.

Word	Noun	Adjective	Verb	Adverb
starter	Yes	No	No	No
contestant	Yes	No	No	No

As nouns, contestant is a hypernym of starter; that is, contestant is a word with a broader meaning than starter:

starter (noun)	contestant (noun)
a culture containing yeast or bacteria that is used to start the process of fermentation or souring in making butter or cheese or dough	a person who participates in competitions
a hand tool consisting of a rotating shaft with parallel handle	a person who dissents from some established policy
an electric motor for starting an engine
food or drink to stimulate the appetite (usually served before a meal or as the first course)
any new participant in some activity
the official who signals the beginning of a race or competition
a contestant in a team sport who is in the game at the beginning