The state of being grand or splendid; magnificence. / Nobility (state of being noble). / (archaic, rare) Greatness; largeness; tallness; loftiness.

plural of grandeur

plural of delusion of grandeur

(usually in the plural) The false belief that one is important or powerful, accompanying certain mental disorders. / (usually in the plural) Conceitedness or overconfidence.

delusion of grandeur

plural of folie de grandeur