- the power or right to control, judge, or prohibit the actions of others
- (often plural) a person or group of people having this power, such as a government, police force, etc
- a position that commands such a power or right (often in the phrase in authority)
- such a power or right delegated, esp from one person to another; authorization: she has his authority
- the ability to influence or control others
- an expert or an authoritative written work in a particular field
- evidence or testimony
- confidence resulting from great expertise
- (capital when part of a name) a public board or corporation exercising governmental authority in administering some enterprise: Independent Broadcasting Authority
WordReference Random House Learner's Dictionary of American English © 2014
- [uncountable] the right, power, or ability to control, command, or decide.
- [uncountable] power or right officially given;
- [countable] a body of persons to whom the right to command or decide issues is given, as a government.
- [countable] Usually, authorities. [plural] persons having the legal power to make and enforce the law;
government:surrendered to the authorities.
- [countable] an accepted source of information or advice:That book is the authority on the subject.
- [countable] an expert on a subject: Ask questions of a real authority on baseball.
- [uncountable] forcefulness; showing strong belief or conviction: speaks with authority when he lectures.
- have it on good authority, [~ + that clause] to have information from a reliable source:I have it on good authority that she is about to announce her candidacy.