 | Realgar (alternate #2) or Smoke One of several alchemical symbols for realgar. |
 | Realgar (alternate #3) One of several alchemical symbols for realgar. |
 | Realgar (alternate #4) One of several alchemical symbols for realgar. |
 | Rebel Alliance The Alliance to Restore the Republic (commonly known as the Rebel Alliance, and, informally, as the Rebellion) is an interstellar faction of the fictional universe of Star Wars. |
 | Recording Industry Association of America |
 | Recreativo de Huelva Logo Real Club Recreativo de Huelva, S.A.D. (Spanish pronunciation: [reˈal ˈkluβ rekɾeaˈtiβo ðe ˈwelβa]) is a Spanish football club based in Huelva, in the autonomous community of Andalusia. Founded on 23… |
 | Rectangle In Euclidean plane geometry, a rectangle is any quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal … |
 | Red (color) The symbolism of the color red. |
 | Red and black awareness ribbon The Red and Black Ribbon is used on Atheist Solidarity Day. |
 | Red and blue awareness ribbon The red and blue awareness ribbon represents several causes: |
 | Red and gold awareness ribbon Represents neonatal alloimmune thrombocytopenia (NAIT) awareness. |
 | Red Apple (Samsung One UI 1.0) |
 | Red awareness ribbon The red awareness ribbon represents several causes: |
 | Red awareness ribbon with yellow and black stripes Represents choking game awareness/advocacy. |
 | Red Crescent During the Russo-Turkish War from 1876 to 1878, the Ottoman Empire used a Red Crescent instead of the Red Cross because its government believed that the cross would alienate its Muslim soldiers. |
 | Red Cross The Red Cross on white background was the original protection symbol declared at the 1864 Geneva Convention. |
 | Red Crystal Because of the controversy over Israel's national society Magen David Adom and a number of other disputes, the introduction of an additional neutral protection symbol had been under discussion for a … |
 | Red Flag The red flag is often seen in combination with other communist symbols and party names. The flag is used at various communist and socialist rallies like May Day, or used in a red bloc. The flag, bein… |
 | Red Horn Symbol The Red Horn symbol featured strongly in the Mississippian culture. The Mound Builders believed that Red Horn was one of the five sons of Earthmaker whom the Creator formed with his own hands and sen… |
 | Red Lion with Sun From 1924 to 1980, Iran used a Red Lion with Sun symbol for its national society, the Red Lion and Sun Society, based on the flag and emblem of the Qajar Dynasty. |
 | Red Sox sparkling logo Boston Red Sox sparkling logo |
 | Red star The five-pointed red star is a symbol of communism as well as broader socialism in general. It is sometimes understood to represent the five fingers of the worker's hand, which run the five continent… |
 | Red vitriol The symbol used in alchemy and early chemistry to represent red vitriol. |
 | Red, white and blue awareness ribbon Used in Omaha, Nebraska after a deadly shooting at Millard South High School (the colors are the school's colors). |
 | Reduced Planck Constant The Ħ is a Latin alphabet meaning reduced Planck constant. |
