Definitions: (noun) If you are an authority on something, many people think you know very, very much about it. (noun) To have authority means to have the power to make a decision.
Examples: (noun) The Pope is the highest authority in the Catholic church. (noun) The police have the authority to evict illegal immigrants from their homes. (noun) This judge has the authority to throw you in jail.
Synonyms: nouns: power, ability. expert.
Academic Word List Sublist and Group: 1 C