Immigrant is the opposite of Citizen. Citizen is related to City. City can be used for Protection. Protection is related to Skull. 
Emphasize is etymologically related to Emphasis. Emphasis is a synonym of Stress. Stress is a type of Phenomenon. Phenomenon is a synonym of Wonder. 
Immigrant <--Antonym--> Citizen <--RelatedTo--> City --UsedFor--> Protection <--RelatedTo--> Skull 
Emphasize --EtymologicallyRelatedTo--> Emphasis <--Synonym--> Stress --IsA--> Phenomenon <--Synonym--> Wonder 