Compound is a synonym of Blend. Blond is etymologically related to Blend. Blond is a type of Person. Person is related to Outsider. 
Elementary is related to School. School is related to Boy. Boy is the opposite of Uncle. 
Compound <--Synonym--> Blend <--EtymologicallyRelatedTo-- Blond --IsA--> Person <--RelatedTo--> Outsider 
Elementary <--RelatedTo--> School <--RelatedTo--> Boy <--Antonym--> Uncle 