Definitions
There is 1 meaning of the phrase
Alter Ego.
Alter Ego - as a noun
A very close and trusted friend who seems almost a part of yourself
Example Sentences
"Clark Kent is Superman's alter ego."
"Beyoncé's alter ego is Sasha Fierce."
"Dr. Jekyll and Mr. Hyde are considered to be each other's alter egos."
"The author often writes under a pseudonym, which is his alter ego."
"Tony Stark's alter ego is Iron Man."