Communication; in speech form is a very powerful tool used by everyone. It can be used by great powers to dictate their opinion; it is used by businesses to carry out business transactions, transactions, etc. And it is also used by the average person. A barrier is an obstacle that separates people and prevents them from communicating effectively; so there are many barriers that prevent people from communicating effectively. Personality Sometimes personality can be a major problem in communicating effectively, as some people are not always willing to communicate; and prefer to trust their own opinions rather than listen to someone else. For example, some people have a very authoritarian personality and try to impose their opinions on others. There are also people who are not able to communicate with others as they could. DisabilityDisability can be a huge barrier to effective communication; but this largely depends on the person's disability. For example, if the disabled person was deaf, other people would have to communicate with them using sign language. Another exam...