1

Sector

Definition

An area or portion that is distinct from others.

Example


You can earn a lot of money if you work in the financial sector.

 

2

Theory

Definition

A system of ideas intended to explain something

Example


Darwin’s theory of evolution established a new way of thinking about creation.

 

3

Authority

Definition

The power or right to give orders, make decisions, and enforce obedience.

Example


He proceeded to assert his authority over his mum’s new boyfriend.