Suitable is a synonym of Meet. Celebrate is a type of Meet. Celebrate is a synonym of Observe. Observe is a synonym of Consider. 
Administer is a type of Direct. Direct is related to Express. Express is the opposite of Delivery. 
Suitable <--Synonym--> Meet <--IsA-- Celebrate <--Synonym--> Observe <--Synonym--> Consider 
Administer --IsA--> Direct <--RelatedTo--> Express <--Antonym--> Delivery 