| Main Entry: | |
| 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 |
| Main Entry: | needful |
| Part of Speech: | adjective |
| Definition: | essential |
| Synonyms: | capital, cardinal, chief, constitutive, crucial, foremost, fundamental, imperative, indispensable, leading, main, necessary, necessitous, needed, prerequisite, principal, required, requisite, right-hand, wanted |