Secure is a synonym of Assure. Assure is a synonym of Promise. Promise is a synonym of Predict. 
Suburb is the opposite of City. City is a different concept from Farm. Farm is related to Housing. Housing is related to Apartment. 
Secure <--Synonym--> Assure <--Synonym--> Promise <--Synonym--> Predict 
Suburb <--Antonym--> City <--DistinctFrom--> Farm <--RelatedTo--> Housing <--RelatedTo--> Apartment 