Highlight is derived from Light. Light is a synonym of Soft. Soft is the opposite of Rock. Rock is a synonym of Crack. 
Square is related to Market. Market is related to Public. Publish is etymologically related to Public. Publish is etymologically related to Finish. 
Highlight --DerivedFrom--> Light <--Synonym--> Soft <--Antonym--> Rock <--Synonym--> Crack 
Square <--RelatedTo--> Market <--RelatedTo--> Public <--EtymologicallyRelatedTo-- Publish --EtymologicallyRelatedTo--> Finish 