The term 'fall suddenly' can be described by four different crossword solutions: TANK (4 letters), PLUMMET (7 letters), TUMBLE (6 letters), DROP (4 letters), and FLOP (4 letters). TANK refers to a large container for storing liquids, while PLUMMET means to fall rapidly from a great height. TUMBLE is an act of falling or rolling over and over, and DROP is to move quickly downward. Finally, FLOP is to fall or move clumsily. All of these words describe the suddenness of a fall.