Dock is related to Slip. Slip is a synonym of Stumble. Stumble is a synonym of Error. Error is the opposite of Correct. 
Render is a synonym of Depict. 
Dock <--RelatedTo--> Slip <--Synonym--> Stumble <--Synonym--> Error <--Antonym--> Correct 
Render <--Synonym--> Depict 