3 syllables: I, gua, zu Falls. Stress on zu Falls.
ig-wah-ZOO-fawlz
/ɪɡwɑˈzuː fɔlz/
Iguazu Falls is pronounced ig-wah-ZOO-fawlz (/ɪɡwɑˈzuː fɔlz/). It has three syllables (I-gua-zu Falls), with the stress on "zu Falls". Iguazu Falls is a spectacular waterfall system located on the Iguazú River, forming part of the border between Argentina and Brazil. The name derives from the Guaraní language, meaning “large waters” or “great waters,” reflecting the falls’ volume and scale. The term is commonly used in English-speaking contexts to refer to the falls themselves and the surrounding national park.
nounIguazu Falls is a spectacular waterfall system located on the Iguazú River, forming part of the border between Argentina and Brazil. The name derives from the Guaraní language, meaning “large waters” or “great waters,” reflecting the falls’ volume and scale. The term is commonly used in English-speaking contexts to refer to the falls themselves and the surrounding national park.
"We visited Iguazu Falls last summer and were amazed by the sheer height and mist."
"The tour guide explained the best viewpoints to appreciate Iguazu Falls from both the Argentinian and Brazilian sides."
"I studied the local Guaraní etymology behind Iguazu Falls to understand its cultural significance."
Phonetically, you can pronounce Iguazú Falls as: /i.ɡwaˈzuː ˈfɔːlz/ in US English, with the stress on the second syllable of Iguazú (zuː) and on Falls (ˈfɔːlz). In many transcriptions, the Guaraní-derived first word has a soft initial vowel and a /ɡ/ + /w/ cluster. Tip: emphasize the 'gwah' sound, then a clear 'zu' syllable, and finally a strong 'falls' with final s. Audio cues reference: you’ll hear the 'I' like 'ee,' the 'gua' as 'gwa,' and the accent on ‘zu’ before the plural ‘Falls.’
Common errors include misplacing stress (treating Iguazú as all one beat) and mispronouncing /ɡwa/ as separate /ɡ/ and /w/ without blending. Another frequent slip is turning /zu:/ into /zu/ with a short vowel. Correction: keep the second syllable stressed (zuː) and blend 'gwa' into /ɡwa/ quickly, then glide into /ˈfɔːlz/ with a released final /z/.
In US English, you’ll hear /i.ɡwɑˈzuː ˈfɔːlz/, with a clear, rounded /ɒ/ to /ɔː/ in Falls, and 'gua' as /ɡwɑ/. UK English often uses /ɪ.ɡwæˈzuː/ with a shorter first vowel and broader /æ/ quality; AU tends toward /iː.ɡwɒˈzuː/ with a longer, open a in the second syllable and a non-rhotic final; however, rhotics are still audible in informal speech. The main divergence is vowel length and quality in Iguazú’s second syllable and the vowel in Falls.
The difficulty lies in the Guaraní-derived vowel cluster /iˈɡwæˈzuː/ and the 'gw' combination, which is less common in English. The second word requires a long /uː/ in many varieties, and the stresses sit across two words rather than a single unit. Speakers also must beat the transfer between a Romance-language-like vowel in Iguazú and the American English /ɔː/ in Falls. Mastery comes from blending the syllables and maintaining smooth palatalization.
A key feature is the guaraní-origin syllable cluster gwá (loosely /ɡwaː/ or /gwaː/ depending on accent) followed by /zuː/. The acute or tilde marks in native orthography reflect vowel quality but in English transcription it’s approximated as /i.ɡwɑˈzuː/. The two-word construction means you must manage phrase-level stress: Iguazú Falls tends to emphasize Zu in English, while authentic Guaraní would tie stress more evenly.
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US differences: rhoticity makes r-like cues less relevant; IPA: /iɡwɑˈzuː ˈfɔlz/; UK: shorter first vowel, somewhat broader /æ/; AU: /iːɡwɒˈzuː ˈfɔːlz/ with flatter intonation and non-rhotic tendencies; ensure final z is voiced clearly. Vowel contrasts: Iguazú: /i.ɡwɑːˈzuː/ vs /ɪ.ɡwæˈzuː/; Falls: /fɔːlz/ vs /fɒlz/; practice with minimal pairs and look for pitch patterns in phrase.
Iguazu Falls derives its name from the Guaraní language, spoken by Indigenous peoples in the Paraná River basin. The proper noun Iguazú (or Iguazú in Spanish orthography) is often analyzed as gua- (water) + zu (big or many) in Guaraní morphology, though exact glossing varies among sources. In Guaraní, the phrase is tied to a myth of a deity or spirit and was adopted by early explorers and missionaries in the 16th–18th centuries, spreading through mapmaking and travel writing. The falls themselves were first described in European natural history accounts after early 1500s expeditions along the Río de la Plata basin. English usage standardized the spelling Iguazu Falls, a common anglicization that preserves the original Guaraní phonology while conforming to English orthographic patterns. In cross-border contexts, both Iguazú (with the acute accent on u in Portuguese/Spanish orthography) and Iguazu are used, with regional preference depending on country and language (Spanish, Portuguese, English). The term carries cultural resonance beyond hydrology, representing a significant natural monument and UNESCO World Heritage site since 1984. Over time, “Iguazu Falls” has become the dominant international label, while locally, people may simply say “Iguazú.” The evolution reflects colonial-era naming, Indigenous language retention, and modern conservation branding. The word now embodies both a phenomenal natural feature and a cultural symbol in Argentina, Brazil, and neighboring regions.
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💡 These words have similar meanings to "Iguazu Falls" and can often be used interchangeably.
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Words that rhyme with "Iguazu Falls"
-azu sounds
-zoo sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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