The term 'RAVE'S PARTNER' can be solved by two different crossword solutions: RANT (4 letters) and RANTS (5 letters). RANT is a verb meaning to speak or shout at length in an angry, impassioned way. It is often used to express strong disapproval or criticism. Rants are the noun form of the verb, and refer to the long, angry speeches given by someone who is expressing their strong disapproval or criticism.