variants:
or less commonly açai
Definition of acai
1a
or acai berry
: a small, dark purple, berrylike fruit with a juicy pulp that is often used in beverages or eaten raw and that is produced by a tall, slender palm (Euterpe oleracea) native to tropical rain forests of Central and South America
b
: the palm (Euterpe oleracea) that produces acai berries
2
: a beverage made from the juice of the acai berry
Rio de Janeiro is the city that worships health and beauty and where the healthy and the beautiful drink acai.— Alex Bellosz
Test Your Vocabulary
Name That Color
-
- Name that color:

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share acai
Time Traveler for acai
The first known use of acai was circa 1868
See more words from the same year