How do you say acerola in English?

Acerola is already an English word. It's the English name for the fruit of the acerola cherry tree.

However, you might hear it referred to as:

* Barbados cherry: This is a common alternative name for the fruit.

* West Indian cherry: Another common name, highlighting its origin.

* Acerola cherry: This is a less common name, but still accurate.

So, "acerola" is perfectly acceptable in English, but you may also see or hear the other names mentioned above.