The term 'hang tough' is an idiom that means to remain strong and determined in the face of adversity. The crossword solutions for this term include 'LAST' (4 letters), 'PERSIST' (7 letters), 'STRENGTH' (8 letters), 'dontbackdown' (12 letters), 'keepthefaith' (12 letters), 'putupagoodfight' (15 letters), 'standyourground' (15 letters), and 'sticktoonesguns' and 'sticktoyourguns' (both 15 letters). These words all suggest that one should remain steadfast and not give up in the face of difficulty.