1.
authority, power, influence
The power or right to command, enforce rules, or make decisions. Also the commanding influence that comes from status, tradition, or institutional position.
2.
authority, leading expert
A person who is widely recognized as a foremost expert in a particular field. Used to describe someone whose expertise commands respect.
Etymology
権 (power, right) + 威 (authority, dignity, majesty).
Usage
In sense 1, 権威 often carries a slightly negative nuance when used in phrases like 権威を振りかざす (to wield authority overbearingly). In sense 2, it is neutral to positive, describing respected expertise. The adjective form 権威的 means "authoritarian."
Common collocations
Related Words
Compare:
識者 (expert)