Definitions:

1. A word that describes itself or has the very property that it denotes. ADJECTIVE
   • The concept of autological words fascinates linguists because it creates a unique link between meaning and form.
2. Describing a characteristic that the word itself possesses. ADJECTIVE
   • "Noun" is an autological word because it is itself a noun.

Synonyms:

• self-descriptive
• self-referential
• self-representative