Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun niagara
2 senses of niagara
Sense 1
Niagara, Niagara Falls -- (waterfall in Canada is the Horseshoe Falls; in the United States it is the American Falls)
INSTANCE OF=> waterfall, falls -- (a steep descent of the water of a river)
Sense 2
Niagara, Niagara River -- (a river flowing from Lake Erie into Lake Ontario; forms boundary between Ontario and New York)
INSTANCE OF=> river -- (a large natural stream of water (larger than a creek); "the river was navigable for 50 miles")