The word acai is pronounced as ah-sah-EE or ah-sigh-EE.
- The first syllable sounds like "ah" (as in "father").
- The second syllable sounds like "sah" or "sigh."
- The emphasis is on the last syllable: EE (like the letter "E").
So, you can say it as ah-sah-EE or ah-sigh-EE , with the stress on the final "EE" sound. The first pronunciation is more common in Brazilian Portuguese.