When two or more words are defined by using themselves as the solo point of explanation. This is also known as “defining in loop,” and is theoretically possible. Although, broadly speaking it is considered incorrect (illogical).
Definition of Chair: a wooden object
Definition of Wooden Object: a chair
This would be considered a Definitional Paradox.
Definition of Wooden Object: a chair
This would be considered a Definitional Paradox.
by Harvard Professors Are Dumb August 5, 2021