Dictionary and Thesaurus

Definition of Niagara

• (noun) a river flowing from Lake Erie into Lake Ontario; forms boundary between Ontario and New York
• (noun) waterfall in Canada is the Horseshoe Falls; in the United States it is the American Falls

Synonyms of Niagara

• Niagara
• Niagara Falls
• Niagara
• Niagara River

Antonyms of Niagara

Homophones of Niagara