The term BE A SIGN OF; INDICATE can be broken down into four crossword solutions: DENOTE (6 letters), YAWN (4 letters), BODE (4 letters), and AGE (3 letters). DENOTE means to indicate or suggest something in an indirect way, while YAWN is a reflex action that usually indicates tiredness or boredom. BODE is an archaic word meaning to foretell or portend, and AGE is a period of time in a person's life. All four words can be used to describe the term BE A SIGN OF; INDICATE, as they all refer to ways of indicating or suggesting something.