The relationship categories in the Visual Thesaurus include:
Antonym: A noun, verb, adjective, or adverb that expresses the opposite concept of another word. Example: Good is an antonym of evil.
Pertains to: An adjective that is related or pertains to another word. Example: Academic> pertains to academia.
Participle of: An adjective that is derived from a verb participle. Example: Applied is a participle of apply.

