Mononymous vs. Polynymous

Mononymousadjective

having a single-word name.

Polynymousadjective

(rare) Having multiple names.

Mononymousadjective

(of a person) known by just one name, rather than a first name and surname

‘Adele now realizes she is a bona fide international star on par with fellow mononymous singers like Madonna, Prince, and Beyonce’;