2 syllables: hy, drate. Stress on hy.
HEYE-drayt
/ˈhaɪˌdɹeɪt/
hydrate is pronounced HEYE-drayt (/ˈhaɪˌdɹeɪt/). It has two syllables (hy-drate), with the stress on "hy". Hydrate means to cause a substance, especially a mineral or a cell, to absorb water and become turgid or hydrated. In everyday use, it refers to adding water to the body or to a chemical process of incorporating water into a compound. It can also describe staying or being provided with adequate fluids. The term spans science, medicine, and everyday hydration practices.
Hydrate means to cause a substance, especially a mineral or a cell, to absorb water and become turgid or hydrated. In everyday use, it refers to adding water to the body or to a chemical process of incorporating water into a compound. It can also describe staying or being provided with adequate fluids. The term spans science, medicine, and everyday hydration practices.
"When you exercise, it’s important to hydrate and replace lost fluids."
"The science experiment showed how the plaster hydrates when mixed with water."
"Athletes often drink electrolyte beverages to hydrate more effectively."
Pronounce it HY-drate with the primary stress on the first syllable. IPA: US/UK/AU can be written as /ˈhaɪdreɪt/. The first syllable contains the /aɪ/ diphthong (like 'high'), then /dreɪt/ with an explicit /d/ onset, a long /eɪ/ vowel, and a final /t/. Mouth position involves a tall, tense tongue for /aɪ/, a light touch for the /d/, and a crisp /t/ at the end. You’ll hear a clear, peak-stress on HY, followed by a slower, lighter second syllable.
Two common errors: (1) pronouncing the second syllable as /drit/ or dropping the r, producing HY-drit instead of HY-drate; (2) misplacing the diphthong, saying /haɪdriːt/ or /haɪdɹɪt/ by flattening the /eɪ/. Correction: keep the /eɪ/ in the second syllable and release the final /t/ crisply, ensuring the /r/ is not intrusive in non-rhotic speakers. Practice with slow repetitions: /ˈhaɪ.drɛɪt/ then /ˈhaɪ.dreɪt/ (the second is correct).
US/UK/AU share /ˈhaɪdreɪt/ with the primary stress on HY. In non-rhotic UK accents, the final /t/ is often released clearly in careful speech but can be less aspirated in fast speech; US accents keep a tight /t/ release, while AU tends toward a similar /ˈhaɪdreɪt/ with slight vowel flattening and a pronounced /t/ at the end. The rhotic /r/ does not appear in /haɪd/ in any of these accents unless followed by a vowel in connected speech, but within the word there is no /r/ sound. Overall, the core diphthong /aɪ/ and /dreɪt/ remain stable across regions.
The challenge lies in the /aɪ/ diphthong, which requires a precise gliding movement from a low to a high vowel while keeping the tongue from leaking into the /d/ onset. The /dreɪt/ sequence demands a clean /d/ onset followed by the /reɪ/ vowel without inserting an extra vowel between /d/ and /r/. Rapid speech often causes vowel reduction or a softened /t/ release. Practicing slow, then speed builds the muscle memory for the correct mouth shapes and timing.
Watch the onset and the diphthong: ensure the /haɪ/ starts with a clear /h/ and the /aɪ/ is a true diphthong moving toward /ɪ/ in rapid speech if not fully articulated, but in hydrate it stays close to /eɪ/ in the second syllable. The final /t/ should be a crisp stop rather than a softened flap. In careful speech, you’ll hear a distinct /dreɪt/ rather than /drət/. Maintaining the /ɔɪ/ variant is unnecessary here; the canonical form is /ˈhaɪdreɪt/.
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Hydrate comes from the Greek word hydor (water) combined with the suffix -ate, which forms verbs indicating a process or result. The root hydor appears in several related terms such as hydration, dehydrate, and hydrous. In English, the word entered scientific and medical usage in the 19th century, aligning with advances in chemistry and biology that emphasized water’s role in chemical reactions and biological systems. The sense of “to supply water or moisture” carries through from the chemical sense (to render a substance water-containing) to the biological sense (to provide fluids to an organism). Early scientific texts used hydrate to describe minerals that form hydrates (minerals with water bound in their crystal structure). Over time, the term expanded into general usage for bodily fluids and hydration strategies, while retaining its core meaning of adding or containing water. The noun form hydration also evolved to denote the process or state of being hydrated, widely used in medicine, sports science, and nutrition. The first known uses align with chemical and mineralogical contexts, later appearing in medical literature as the importance of fluids became central to health and performance. Today hydrate remains common in science and everyday health language, with precise pronunciation and stress patterns that reflect its Greek-derived roots.
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💡 These words have similar meanings to "hydrate" and can often be used interchangeably.
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Words that rhyme with "hydrate"
-ate sounds
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