The crossword solution for the term 'MANI'S PARTNER' is PEDI, which is a four letter word. PEDI is short for pedicure, which is a beauty treatment for the feet and toenails. It is usually done in a salon by a professional, and is often done in conjunction with a manicure, which is a beauty treatment for the hands and fingernails. Therefore, PEDI is the perfect answer for the term 'MANI'S PARTNER', as it is the partner of a manicure.