Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

ra

abbreviation

Definition of ra

  1. range




1

Ra

play
noun \ˈrä\

Definition of Ra

  1. :  the Egyptian sun god and chief deity



Origin and Etymology of ra

Egyptian


First Known Use: 1877

Other Religion (Eastern and Other) Terms

Rhymes with ra


2

Ra

symbol

Definition of Ra

  1. radium



Other Chemical Engineering Terms

Rhymes with ra


RA

abbreviation

Definition of RA

  1. 1 regular army

  2. 2 right ascension

  3. 3 Royal Academician; Royal Academy

  4. 4 residence assistant; resident assistant

  5. 5 research assistant




Medical Dictionary

Ra

symbol

Medical Definition of Ra

  1. radium




RA

abbreviation

Medical Definition of RA

  1. rheumatoid arthritis




Learn More about ra

  1. Medical Dictionary: Definition of ra Britannica.com: Encyclopedia article about ra


Seen and Heard

What made you want to look up ra? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

brumal estival vernal hiemal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ