square circle, n.Definitions

A Square circle (n.) has ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠no referent and no signified, yet it still means something: it is contradictory, not senseless.