niagara noun Stress: second syllable 🤍 Save Syllables: Ni-ag-a-ra (4) English Definition A famous waterfall on the border between Canada and the US Example Sentence Niagara Falls is a spectacular sight to behold. US IPA /naɪˈæɡərə/ 🔊 Listen US UK IPA /naɪˈæɡərə/ 🔊 Listen UK Synonyms waterfall cataract cascade Share this Word Facebook WhatsApp X Telegram Copy Link