Question

A fictitious name used by an author to conceal his or her identity

Answer 1

Answer:

nom de plume

pseudonym. a nom de plume or fictitious name, especially one used by an author to conceal his identity

Answer 2

Explanation:

A pen name, or "nom de plume" (French for "pen name"), is a pseudonym (sometimes a particular form of the real name) adopted by an author (or on the author's behalf by their publishers).