Hungry is a synonym of Hunger. Hunger is related to Want. Want is a type of Miss. 
Rain is the opposite of Snow. Snow is a type of Layer. Layer is related to Skin. 
Hungry <--Synonym--> Hunger <--RelatedTo--> Want --IsA--> Miss 
Rain <--Antonym--> Snow --IsA--> Layer <--RelatedTo--> Skin 