The term 'Sign of Danger' can be represented by three different crossword solutions: FLARE (5 letters), BEWARE (6 letters), and THINICE (7 letters). A FLARE is a bright light that is used to signal danger or alert people to an emergency. BEWARE is a warning to be cautious and aware of potential danger. THINICE is a metaphor for a precarious situation, implying that one should be careful not to make a wrong move. All three of these words are used to indicate that a person should be aware of potential danger.