 | Retrograde motion Symbol represents the apparent retrograde motion of a planet in an astrological chart. |
 | Revenge A French hobo sign indicating that revenge must be taken. |
 | Reverberating furnace This is an alchemical sign for a reverberating furnace. |
 | Reverberating furnace (alternate) An alchemical sign for a reverberating furnace. |
 | Reverse Seal of Pennsylvania The Great Seal of the Commonwealth of Pennsylvania is the state seal for the U.S. state of Pennsylvania. Unlike most state seals, it has an obverse and a reverse. |
 | Reverse Seal of Texas The Seal of the State of Texas was adopted through the 1845 Texas Constitution, and was based on the seal of the Republic of Texas, which dates from January 25, 1839. |
 | Rhetorical Question Mark An unconventional punctuation mark that indicates a rhetorical question. |
 | Rhino Area Rhino Area - Botswana |
 | Rhinoceros (Apple iOS 12.2) |
 | Rho Rho is the 17th letter of the Greek alphabet. In the system of Greek numerals, it has a value of 100. It is derived from Phoenician letter res Phoenician res.svg. Its uppercase form is not to be conf… |
 | Rhombus In Euclidean geometry, a rhombus (◊), plural rhombi or rhombuses, is a simple (non-self-intersecting) quadrilateral whose four sides all have the same length. Another name is equilateral quadrilatera… |
 | Rì chū (simplified) Chinese characters representing "Rì chū", which translates as 'Sunrise'. |
 | Rice Rice |
 | Rice (grain) Throughout East and South Asia, rice cultivation stretches back many thousands of years, and it remains an immensely important foodstuff in both regions today. Over its very long history, this simple… |
 | Rice Ball (Samsung One UI 1.5) |
 | Rice Cracker (Samsung One UI 1.5) |
 | Rifle Rifle |
 | Right Angle Specifies that an angle is 90 degrees. |
 | Right Bend Ahead Right bend ahead sign - U.K. |
 | Right Open Interval A range of values between the listed values including the left value but not the right value. |
 | Right Triangle Specifies that a triangle is a right triangle (i.e., has an angle that is 90 degrees) |
 | Rìluò Chinese characters representing "Rìluò", which translates as 'Sunset'. |
 | Ringstone The ringstone symbol was designed by `Abdu'l-Bahá, Bahá'u'lláh's son and successor, and as its name implies, is the most common symbol found on rings worn by Bahá'ís, but it is also used on necklaces… |
 | Rio Majes A carving from the valley of Rio Majes in southern Peru (roughly 300 B.C.E.). Possibly indicates a house, but no contextual information known at this time. |
 | Rio Majes #2 A carving from the valley of Rio Majes in southern Peru (roughly 300 C.E.). Possibly indicates lightning, but no contextual information known at this time. |
