Publication is a synonym of Announcement. Notice is a type of Announcement. Notice is related to Public. Public is the opposite of Hide. 
Depict is a synonym of Describe. Describe is related to Say. Say is related to Conversation. Conversation is a type of Speech. 
Publication <--Synonym--> Announcement <--IsA-- Notice <--RelatedTo--> Public <--Antonym--> Hide 
Depict <--Synonym--> Describe <--RelatedTo--> Say <--RelatedTo--> Conversation --IsA--> Speech 