Waterfall

• POS: Noun
• HYPHEN: wa=ter=fall

CIDE DICTIONARY

Waterfall, n. 

•  A fall, or perpendicular descent, of the water of a river or stream, or a descent nearly perpendicular; a cascade; a cataract.  [1913 Webster]
•  An arrangement of a woman's back hair over a cushion or frame in some resemblance to a waterfall.  [1913 Webster]
•  A certain kind of neck scarf.  T. Hughes.  [1913 Webster]

OXFORD DICTIONARY

Waterfall, n. a stream or river flowing over a precipice or down a steep hillside.

THESAURUS

Waterfall

Niagara, cascade, cataract, chute, collapse, comedown, crash, debacle, declension, declination, defluxion, descending, descension, descent, down, downbend, downcome, downcurve, downfall, downflow, downgrade, downpour, downrush, downtrend, downturn, downward trend, drop, dropping, eddy, fall, falling, falls, force, gravitation, inclination, linn, nappe, plummeting, pounce, rapids, riffle, sault, shoot, spout, stoop, surge, swoop, vortex, watershoot, whirlpool