A waterfall is a natural phenomenon created when water flows over a steep drop in elevation. The crossword solutions for the term 'waterfall' include 'FALL' (4 letters), 'linn' (4 letters), 'CHUTE' (5 letters), 'sault' (5 letters), 'CATARACT' (8 letters), 'CASCADE' (7 letters), and 'NIAGARA' (7 letters). All of these terms refer to different types of waterfalls, with 'FALL' referring to a general waterfall, 'linn' referring to a waterfall formed by a river entering a lake or sea, 'CHUTE' referring to a steep, narrow waterfall, 'sault' referring to a waterfall created by a river flowing over a rocky ledge, 'CATARACT' referring to a large, powerful waterfall, 'CASCADE' referring to a series of small waterfalls, and 'NIAGARA' referring to a large, powerful waterfall located on the NIAGARA River. Finally, 'FORCE' (5 letters) refers to the power of the water as it falls over the edge of the waterfall.