Freelance
Part of speech: adjective
Definition: Of, or relating to a freelance
Part of speech: verb
Definition: To work as a freelance To produce or sell services as a freelance
Part of speech: noun
Definition: Someone who sells his services to employers without a long-term contract A medieval mercenary
Example sentence: I am really only interested in new information, not freelance opinion. I don't really care what you think off the top of your head.
Mercenary
Part of speech: adjective
Definition: motivated by private gain
Part of speech: noun
Definition: A person employed to fight in an armed conflict who is not a member of the state or military group for which they are fighting and whose prime or sole motivation is private gain.
Example sentence: Some day I shall write a novel and call it 'A Walking Tour in the Congo' or 'Thrills and Spills in Aeronautics'; but I keep this type of title as a last & mercenary resort.