Meaning is related to Home. Home is related to Nest. 
Economist is a synonym of Husband. Husband is a type of Spouse. Spouse is a type of Relative. Relative is related to Son. 
Meaning <--RelatedTo--> Home <--RelatedTo--> Nest 
Economist <--Synonym--> Husband --IsA--> Spouse --IsA--> Relative <--RelatedTo--> Son 