The disadvantage of relying on authority is that it ultimately amounts to relying on the opinion of others. Opinions vary and opinions change.
authority files in libraries
a person or a group have authority to appoint you..
authority means that it can be a comic or jokes and it can be a police
Authority justifies a state's use of power over its citizen - Apex
authority held by and elected public offical
to give power right or authority
He is an authority in his field.
to demand or take by authority
authority figures include:law enforcement personnelmilitary personnelteachers
it means that if you are under authority, someone has more power over you for example a teacher has authority over his/her pupils.
To take something away: to take somebody's property with authority, or appropriate property for personal use as if with authority. Or take something as legal penalty : to seize property legally forfeited to the public treasury as a penalty.
It means actually existing, especially without lawful authority