Why do the words ‘overlook’ and ‘oversee’ mean different things when look and see are nearly synonym

Although some definitions are similar, the difference is how the words are most commonly used. When people use overlook, it usually means that the person did not notice something. It can be intentional or unintentional. When people use oversee, it usually means a person whose position is to monitor. An example would be a teacher who supervises ......   reply