| Scrabble Word | Definition |
| racemization25 | (chemistry) The formation of a racemate from a pure enantiomer. |
| ramification19 | (botany, anatomy) A branching-out, the act or result of developing branches; specifically the divergence of the stem and limbs of a plant into smaller ones, or of similar developments in blood vessels, anatomical structures etc. |
| ratification17 | The act or process of ratifying, or the state of being ratified. |
| reactivation17 | The activation of something previously inactive or inactivated. |
| reallocation14 | The act of reallocating; a second or subsequent allocation. |
| reannexation19 | The act of reannexing. |
| recollection16 | The act of recollecting, or recalling to the memory; the act of recalling to memory |
| recommission18 | To give a new commission or to validate an existing commission. |
| reconception18 | A new conception or way of conceiving something |
| reconnection16 | A connection of things that have been previously severed. |
| reconversion17 | action of converting something again |
| reconviction19 | (law) Conviction again or anew. |
| recuperation16 | Gradual restoration to health. |
| redecoration15 | The act of redecorating |
| rededication16 | A new dedication. |
| redefinition16 | The act or event of redefining. |
| reescalation14 | Alternative spelling of re-escalation |
| reevaluation15 | A second or subsequent evaluation or rating |
| refoundation16 | The process of founding something anew. |
| regeneration13 | rebuilding or restructuring; large scale repair or renewal. |
| Scrabble Word | Definition |
| radiocarbon16 | A radioactive isotope of carbon, especially 146C |
| rapscallion15 | A rascal, scamp, rogue, or scoundrel. |
| rarefaction16 | A reduction in the density of a material, especially that of a fluid. |
| reaccession15 | accession again |
| readmission14 | a second or subsequent admission |
| realization20 | The act of realizing. |
| reanimation13 | The act of reanimating; a second or subsequent animation. |
| reapportion15 | To apportion again; to redistribute or reallocate. |
| reassertion11 | the act of reasserting; a second or subsequent assertion |
| recantation13 | The act of recanting or something recanted. |
| reclamation15 | The act of reclaiming or the state of being reclaimed. |
| recognition14 | The act of recognizing or the condition of being recognized (matching a current observation with a memory of a prior observation of the same entity). |
| recondition14 | To restore to a functional state, or to a condition resembling the original. |
| recordation14 | (law) The act of giving legal status to a document by making it an official public record. |
| redigestion13 | The process of redigesting. |
| redirection14 | The act of setting a new direction. |
| reeducation14 | the act of educating again or anew so as to rehabilitate or adapt to new situations. |
| reformation16 | An improvement (or an intended improvement) in the existing form or condition of institutions or practices, etc.; intended to make a striking change for the better in social, political or religious affairs or in the conduct of persons or operation of organizations. |
| rehydration18 | The replenishment of water and electrolytes lost through dehydration. |
| reification16 | The consideration of an abstract thing as if it were concrete, or of an inanimate object as if it were living. |
| Scrabble Word | Definition |
| recitation12 | The act of publicly reciting something previously memorized. |
| recreation12 | Any activity, such as play, that amuses, diverts or stimulates. |
| redemption15 | The act of redeeming or something redeemed. |
| redivision14 | division again or anew |
| reelection12 | the act of being elected after already being elected once, and already having served out one's first term. |
| reemission12 | a second or subsequent emission |
| reflection15 | The act of reflecting or the state of being reflected. |
| refraction15 | (physics) The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density. |
| refutation13 | An act of refuting or disproving; the disproving of an argument, opinion, testimony, doctrine or theory by argument or countervailing proof; evidence of falseness. |
| regression11 | An action of regressing, a return to a previous state. |
| regulation11 | (uncountable) The act of regulating or the condition of being regulated. |
| reignition11 | Process, act or instance of reigniting. |
| reinvasion13 | The act or process of reinvading; a subsequent invasion. |
| relaxation17 | The act of relaxing or the state of being relaxed; the opposite of stress or tension; the aim of recreation and leisure activities. |
| relegation11 | The act of being relegated |
| relocation12 | The act of moving from one place to another. |
| renovation13 | An act, or the process, of renovating. |
| reparation12 | (usually in the plural) A payment of time, effort or money to compensate for past transgression(s). |
| repetition12 | The act or an instance of repeating or being repeated. |
| reposition12 | To put into a new position |
| Scrabble Word | Definition |
| radiation10 | The shooting forth of anything from a point or surface, like diverging rays of light. |
| rebellion11 | (uncountable) Armed resistance to an established government or ruler. |
| recaution11 | |
| recension11 | A census, an enumeration, a review, a survey. |
| reception13 | The act of receiving. |
| recession11 | The act or an instance of receding or withdrawing. |
| reclusion11 | Life as a recluse. |
| recursion11 | The act of recurring. |
| redaction12 | (countable) Edited or censored version of a document. |
| reduction12 | The act, process, or result of reducing. |
| reedition10 | Alternative spelling of re-edition |
| refashion15 | To fashion again or anew. |
| refection14 | Mental or spiritual refreshment. |
| reflation12 | (economics) The act of restoring a deflated general level of prices to a previous or desired level. |
| reflexion19 | Dated spelling of reflection. |
| rejection18 | The act of rejecting. |
| reliction11 | the gradual loss of water from a river, lake, etc. to leave permanent dry land |
| remission11 | A pardon of a sin; (chiefly historical, also figuratively) the forgiveness of an offence, or relinquishment of a (legal) claim or a debt. |
| rendition10 | (now rare) The surrender (of a city, fortress etc.). [from 17th c.] |
| repletion11 | The condition of being replete; fullness. |
| Scrabble Word | Definition |
| reaction10 | An action or statement in response to a stimulus or other event. |
| rebutton10 | (transitive) To fasten with buttons again. |
| recision10 | The act of cutting off. |
| relation8 | The manner in which two things may be associated. |
| religion9 | (uncountable) Belief in a spiritual or metaphysical reality (often including at least one deity), accompanied by practices or rituals pertaining to the belief. |
| remotion10 | (zoology, chiefly entomology) Backward motion. (Contrast promotion.) |
| replicon12 | (genetics) A DNA molecule or a region of DNA that replicates as an individual unit. A replicon may be, for instance, a chromosome, a plasmid or a phage. |
| reseason8 | (transitive) To season again. |
| resummon12 | To summon again. |
| revision11 | (uncountable) The process of revising: |
| rigadoon10 | (dance) A quickstep dance for two people. |
| rigaudon10 | Alternative form of rigadoon |
| rogation9 | A deeply serious and somber prayer or entreaty. |
| rotation8 | (chiefly uncountable) The act of turning around a centre or an axis. |
| Scrabble Word | Definition |
| raccoon11 | A nocturnal omnivore native to North America, typically with a mixture of gray, brown, and black fur, a mask-like marking around the eyes and a striped tail; Procyon lotor. |
| rampion11 | A species of bellflower with roots and leaves formerly used in salads, Campanula rapunculus |
| rattoon7 | Alternative spelling of ratoon (“rattan cane”) |
| reunion7 | The process or act of reuniting. |
| rockoon13 | A rocket, powered by solid fuel, that is not lit while on the ground but first carried into the upper atmosphere by a gas-filled balloon, then separated from the balloon and automatically ignited to allow it to achieve a higher altitude. |
| ruction9 | A noisy quarrel or fight. |
| Scrabble Word | Definition |
| racoon8 | Alternative spelling of raccoon |
| ramson8 | A plant, Allium ursinum, a wild relative of chives and garlic. |
| ration6 | A portion of some limited resource allocated to a person or group. |
| ratoon6 | A shoot sprouting from the root of a cropped plant, especially sugar cane. |
| ratton6 | (now Northern England, Scotland, Ireland) A rat. [from 14th c.] |
| reason6 | A cause: |
| reckon12 | To count; to enumerate; to number; also, to compute; to calculate. |
| region7 | Any considerable and connected part of a space or surface; specifically, a tract of land or sea of considerable but indefinite extent; a country; a district; in a broad sense, a place without special reference to location or extent but viewed as an entity for geographical, social or cultural reasons. |
| rhyton12 | A container from which fluids are intended to be drunk, having one handle and usually a base in the form of a head. |
| ribbon10 | A long, narrow strip of material used for decoration of clothing or the hair or gift wrapping. |
| ronion6 | Alternative form of ronyon |
| ronyon9 | A mangy or scabby creature. |
| Scrabble Word | Definition |
| racon7 | A beacon that, on detecting a radar signal, responds by transmitting a coded navigation signal. |
| radon6 | The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas. |
| rayon8 | A manufactured regenerated cellulosic fiber. |
| recon7 | (chiefly US, military slang) reconnaissance. |
| redon6 | To don again, to put on again. |
| rewon8 | simple past tense and past participle of rewin |