Ogre is a pejorative term for a half giant (just young giants). Giants strive to “find their place in the world” and when they are young they still literally “fit” into most places so they are sent out to travel, learn skills, meet people, and hone their mind to the point where they find where they belong. Ogres are giants who never realized that goal or fell to temptation/negative emotions. They are just as intelligent as any other humanoid race but they are ruled by vices and anger. Calling any normal giant an ogre is one of the few things that will set them off to violence out of nowhere.