The crossword solution for the term 'RANT'S PARTNER' is RAVE, which is a four-letter word. RAVE is an expression of strong enthusiasm or admiration, usually in the form of a loud and excited speech. It is often used to describe a person's reaction to something they are passionate about. RAVE is often used as the partner to rant, which is an angry or violent expression of strong emotion. RAVE and rant are often used together to describe someone's emotional state.