| Main Entry: | |
| Part of Speech: | noun |
| Definition: | other side to personality |
| Synonyms: | doppelganger, evil twin, second self |
| Main Entry: | gal Friday |
| Part of Speech: | noun |
| Definition: | female assistant |
| Synonyms: | alter ego, assistant, confidant, fidus Achates, girl Friday, hired hand, right-hand girl, second self |
| Main Entry: | man Friday |
| Part of Speech: | noun |
| Definition: | male assistant |
| Synonyms: | assistant, gal Friday, girl Friday, right arm, righthand man, second self |
| Main Entry: | right-hand man |
| Part of Speech: | noun |
| Definition: | important assistant |
| Synonyms: | alter ego, fidus Achates, gal Friday, man Friday, right hand, right-hand woman, second self, strong right arm |