Discuss is a synonym of Discourse. Discourse is a synonym of Lecture. Lecture is related to Professor. Professor is the opposite of Student. 
Faith is related to Requirement. Requirement is related to Card. Card is related to Document. Currency is a type of Document. 
Discuss <--Synonym--> Discourse <--Synonym--> Lecture <--RelatedTo--> Professor <--Antonym--> Student 
Faith <--RelatedTo--> Requirement <--RelatedTo--> Card <--RelatedTo--> Document <--IsA-- Currency 