Pound is a synonym of Nail. you are likely to find Nail in/at/on Board. Board is the opposite of Interested. Interested is related to Curious. 
Decrease is the opposite of Growth. Growth is the opposite of Shrink. 
Pound <--Synonym--> Nail --AtLocation--> Board <--Antonym--> Interested <--RelatedTo--> Curious 
Decrease <--Antonym--> Growth <--Antonym--> Shrink 