| Date: | 1500-1600 |
| Language: | Latin |
| Origin: | 'other I' |
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al‧ter e‧go
[countable]
[countable]1MP an invented person that you use to represent part of your character that is very different from your usual one :
Gissing used his fictional alter ego to attack Victorian morals.
somebody's alter ego
Gissing used his fictional alter ego to attack Victorian morals.2 someone you trust and who has similar opinions, attitudes etc :
Mrs Reagan was widely regarded as the President's alter ego.
Mrs Reagan was widely regarded as the President's alter ego.