If you say that someone is a noble person, you admire and respect them because they are unselfish and morally good.

If you say that something is a noble idea, goal, or action, you admire it because it is based on high moral principles.

If you describe something as noble, you think that its appearance or quality is very impressive, making it superior to other things of its type.

Noble means belonging to a high social class and having a title.

In former times, people who belonged to a high social class and had titles such as 'Baron' or 'Duke' were referred to as nobles .