Narrow is a synonym of Contract. Killing can be used for Contract. Killing can cause/lead to Horrible. 
Grow is the opposite of Diminish. Diminish is a synonym of Melt. Melt is related to Ice. 
Narrow <--Synonym--> Contract <--UsedFor-- Killing --Causes--> Horrible 
Grow <--Antonym--> Diminish <--Synonym--> Melt <--RelatedTo--> Ice 