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The pronunciation of any word in English (or any language at all) is not Universal.  This is because there are many different dialects of The English Language — both throughout America, and also world-wide.  The pronunciations that are presented on GiveMeSomeEnglish!!! are based-upon a combination of both “common usage”, and the most neutral accent used in The International Common Tongue — a.k.a. “American English”.
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Headaches – For this word:  the “H” is pronounced audibly;  the “ea” combination is pronounced simply like the single short letter “e” (this is one of two standard pronunciations in The Common Tongue);  the “d” is a flap-d;  the “a” is a True Long “A”;  the “ch” combination is pronounced simply like the single hard letter “c”;  and the “e” is silent.

– /HEHD-ay-ks/ – /ˈhɛɾ.e.ks/ – Notice also that the stress is on the first syllable and that the “ks” ending acts as a separate syllable –

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Learn More About The Word “Headaches” On Wiktionary

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