alter ego
noun /ˌɔːltər ˈiːɡəʊ/
/ˌɔːltər ˈiːɡəʊ/
(plural alter egos)
(from Latin)- a person whose personality is different from your own but who shows or acts as another side of your personality
- Superman's alter ego was Clark Kent.
- a close friend who is very like yourself
Word Originmid 16th cent.: Latin, ‘other self’.