Learn How to Pronounce pāhoehoe

Quick Answer: In Hawaiian, "pāhoehoe" is pronounced [paːˈhoweˈhowe].
(Listen to the audio above for the stress and intonation)

The Expert's Take

Dr. Franz Lang

"I took a geology field trip to Hawaii years ago, and our guide kept using this term. At first, I, like many, stumbled over the pronunciation, treating it like a foreign spelling puzzle. Once you hear it said correctly—with those gentle glottal stops—it sounds exactly like what it describes: a smooth, flowing, almost quiet movement. It’s a beautiful instance of onomatopoeia from ʻŌlelo Hawaiʻi, where the word itself feels smooth to say."

By Dr. Franz Lang

Meaning and Context

Pāhoehoe is a Hawaiian geological term, formally adopted into the scientific lexicon, that designates a type of basaltic lava flow characterized by a smooth, undulating, and often glossy or ropy surface texture. This distinctive morphology forms when highly fluid, low-viscosity lava moves beneath a thin, flexible, and continuously forming surface crust; the molten interior deforms this skin into graceful folds, ropes, and billows, creating a landscape that can appear as a frozen river or lake of stone. The formation of pāhoehoe is intrinsically linked to specific eruption conditions, including temperature, chemical composition (particularly low silica content), and effusion rate, which allow for sustained fluid movement. It stands in direct contrast to its rough, clinkery counterpart, ʻaʻā lava, with the transition from pāhoehoe to ʻaʻā often occurring downslope as the lava loses heat and gases, increasing its viscosity. These smooth lava flows are iconic features of shield volcanoes like those in Hawaiʻi Volcanoes National Park, particularly Kīlauea and Mauna Loa, and serve as critical indicators for volcanologists studying lava flow dynamics, effusive eruptions, and igneous geology. Understanding pāhoehoe is essential for interpreting past volcanic activity and assessing hazards from future basaltic eruptions.

Common Mistakes and Alternative Spellings

The primary spelling is "pāhoehoe," which includes the Hawaiian diacritical marks: the kahakō (macron) over the first 'a' and the ʻokina (glottal stop) before the 'h'. The kahakō indicates a long vowel sound (pā-hoay-hoay), and the ʻokina represents a consonant. In non-technical or anglicized texts, it is frequently written without diacritics as "pahoehoe," which is the most common simplified spelling. A frequent error is the omission of the ʻokina, leading to the misspelling "paoehoe," which fails to capture the correct pronunciation. Another common typo involves transposing letters, such as "pahohehoe" or "pahoeho." In scientific literature, the fully diacritical form is increasingly preferred for accuracy, though the anglicized version remains widely understood. It is also sometimes incorrectly hyphenated as "pāhoe-hoe." Confusion with the related term "ʻaʻā" is common, but they are distinct in both spelling and reference to different lava types.

Example Sentences

The hikers carefully traversed the vast, undulating field of pāhoehoe, its ropy surface gleaming in the afternoon sun like a sheet of twisted chocolate.

During the 2018 eruption of Kīlauea, volcanologists observed how the initial pāhoehoe flows gradually transitioned to rough ʻaʻā as they traveled further from the vent.

The guide explained that the smooth, billowy texture of this pāhoehoe lobe formed when the molten lava continued to move beneath a thin, plastic crust.

In contrast to the jagged, difficult-to-walk-on ʻaʻā, the relatively smooth surface of pāhoehoe can sometimes allow for easier traversal across a fresh lava field.

Artists and geologists alike are fascinated by the intricate, rope-like patterns preserved in cooled pāhoehoe, which tell the story of the lava's direction and speed.

Sources and References

For this Hawaiian geological term, I used the excellent native speaker recording on Forvo. I cross-referenced the phonetic spelling on Wikipedia and Wiktionary. I also searched for documentaries about volcanoes (e.g., from National Geographic) on YouTube to hear geologists and narrators use the term.

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