Dictionary

RI

abbreviation

Definition of RI

1
refractive index
2
Rhode Island

Browse

Next Word in the Dictionary: RIAPrevious Word in the Dictionary: rhytonAll Words Near: RI
May 22, 2015
nepotism Hear it
favoritism based on kinship
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears