Abandon is the opposite of Rescue. Rescue is related to Saving. Saving is related to Account. Account is related to Organization. 
Bit is related to Drop. Dump is a type of Drop. 
Abandon <--Antonym--> Rescue <--RelatedTo--> Saving <--RelatedTo--> Account <--RelatedTo--> Organization 
Bit <--RelatedTo--> Drop <--IsA-- Dump 