Retain is the opposite of Slip. Slip is related to Short. Short is related to Article. 
Super is related to Department. Department is related to Type. Type is related to Money. Money is related to Fee. 
Retain <--Antonym--> Slip <--RelatedTo--> Short <--RelatedTo--> Article 
Super <--RelatedTo--> Department <--RelatedTo--> Type <--RelatedTo--> Money <--RelatedTo--> Fee 