Student or Learner
I learned from a native speaker that "ignore" just means "don't pay attention to sb/sth", while "look down on" or "despise" means "to disregard to disrespect" someone. But the following examples seem to have the nuance of "despise", so please tell me the difference between "ignore" and "look down on".
ex1)They ignore their siblings or the rest of the family
ex2)Don't even ignore hewers of wood