person or thing belonging to
A functionary is a minor official who works for a government or political party; they attend to administrative tasks that are small and trivial.
A luminary is someone who is much admired in a particular profession because they are an accomplished expert in their field.
An emissary is someone who acts as a representative from one government or leader to another.
An adversary is a person who goes against you in some way, such as an opponent in a contest or a personal enemy in a conflict.
A mercenary person is one whose sole interest is in earning money.
A reliquary is a receptacle or container that displays sacred relics—and keeps them safe.
If a reporter gives commentary about something, they are talking about it as it is happening, or they are discussing and giving their opinion about something that has already happened.
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