how to pronounce sugirio
How do you pronounce "sugirio"?
3 Answers

Here the accent mark is not used to break the diphthong into two syllables and stress the weaker ("i") vowel as in words like mío, tío, lío.
The use here is to maintain the stress on the last syllable like in words ending in ción, ión like opinión, loción.

Sue- Hear- E-Oh
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Sugirió
Su - gir - i - ó - Soo - heer - ee - oh
The accent is on the last syllable.
The english phonetics are only an approximation to the Spanish.