Contestant
Part of speech: noun
Definition: A participant in a contest
Example sentence: I was watching 'Deal or No Deal' on YouTube recently, and I bawled when the contestant won £250,000. I think I just like watching people achieve their dreams.
Dissident
Part of speech: adjective
Definition: In a manner that disagrees; dissenting; discordant; different.
Part of speech: noun
Definition: A person who formally opposes the current political structure, opposes the political group in power, opposes the policies of the political group in power, or opposes current laws.One who disagrees or dissents; one who separates from the established religion.