| rectifier | (noun) electrical device that transforms alternating into direct current | - |
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| (noun) a person who corrects or sets right | - |
| rectify | (verb) set straight or right | Synonyms: amend, remediate, remedy, repair |
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| (verb) make right or correct | Synonyms: correct, right |
| (verb) reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities | Synonyms: refine |
| (verb) convert into direct current | - |
| (verb) bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one | Synonyms: reclaim, reform, regenerate |
| (verb) determine the length of | - |
| rectilineal | (adjective) characterized by a straight line or lines | Synonyms: rectilinear |
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| rectilinear | (adjective) characterized by a straight line or lines | Synonyms: rectilineal |
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| rectilinearity | (noun) the property possessed by a line or surface that is rectilinear, straight. | - |
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| rectitude | (noun) righteousness as a consequence of being honorable and honest | Synonyms: uprightness |
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| recto | (noun) right-hand page | - |
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| rectocele | (noun) protrusion or herniation of the rectum into the vagina; can occur if pelvic muscles are weakened by childbirth | Synonyms: proctocele |
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| rectoplasty | (noun) reconstructive surgery of the anus or rectum | Synonyms: proctoplasty |
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| rector | (noun) a person authorized to conduct religious worship | Synonyms: curate, minister, minister of religion, parson, pastor |
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| rectorate | (noun) the office or station of a rector | Synonyms: rectorship |
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| rectorship | (noun) the office or station of a rector | Synonyms: rectorate |
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| rectory | (noun) an official residence provided by a church for its parson or vicar or rector | Synonyms: parsonage, vicarage |
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| rectosigmoid | (adjective) of or related to or near the sigmoid colon and the upper part of the rectum | - |
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| rectum | (noun) the terminal section of the alimentary canal; from the sigmoid flexure to the anus | - |
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| rectus | (noun) any of various straight muscles | - |
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| recumb | (verb) lean in a comfortable resting position | Synonyms: recline, repose |
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| recumbent | (adjective) lying down; in a position of comfort or rest | Synonyms: accumbent, decumbent |
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| recuperate | (verb) get over an illness or shock | Synonyms: convalesce, recover |
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| (verb) restore to good health or strength | - |
| (verb) regain a former condition after a financial loss | Synonyms: go back, recover |
| (verb) regain or make up for | Synonyms: recoup, recover |
| recuperation | (noun) gradual healing (through rest) after sickness or injury | Synonyms: convalescence, recovery |
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| recuperative | (adjective) promoting recuperation | Synonyms: restorative |
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| recur | (verb) happen or occur again | Synonyms: repeat |
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| (verb) return in thought or speech to something | Synonyms: go back |
| (verb) have recourse to | Synonyms: fall back, resort |
| recurrence | (noun) happening again (especially at regular intervals) | Synonyms: return |
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| recurrent | (adjective) recurring again and again | Synonyms: perennial, repeated |
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| recurrently | (adverb) in a recurrent manner | - |
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| recurring | (adjective) coming back | Synonyms: revenant |
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| recursion | (noun) (mathematics) an expression such that each term is generated by repeating a particular mathematical operation; also, the repeated application or execution of a pattern, function or definition; an expression that is recursive | - |
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| recursive | (adjective) of or relating to a recursion | - |
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| recurvate | (adjective) curved backward or inward | Synonyms: recurved |
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| recurve | (verb) curve or bend (something) back or down | - |
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| recurved | (adjective) curved backward or inward | Synonyms: recurvate |
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| recusal | (noun) (law) the disqualification of a judge or jury by reason of prejudice or conflict of interest; a judge can be recused by objections of either party or judges can disqualify themselves | Synonyms: recusation |
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| recusancy | (noun) refusal to submit to established authority; originally the refusal of Roman Catholics to attend services of the Church of England | - |
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| recusant | (adjective) refusing to submit to authority | - |
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| (adjective) (of Catholics) refusing to attend services of the Church of England | Synonyms: dissentient |
| (noun) someone who refuses to conform to established standards of conduct | Synonyms: nonconformist |
| recusation | (noun) (law) the disqualification of a judge or jury by reason of prejudice or conflict of interest; a judge can be recused by objections of either party or judges can disqualify themselves | Synonyms: recusal |
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| (noun) (law) an objection grounded on the judge's relationship to one of the parties | - |
| recuse | (verb) challenge or except to a judge as being incompetent or interested, in canon and civil law | - |
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| (verb) disqualify oneself (as a judge) in a particular case | - |
| recyclable | (adjective) capable of being used again | Synonyms: reclaimable, reusable |
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| recycle | (verb) use again after processing | Synonyms: reprocess, reuse |
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| (verb) cause to repeat a cycle | - |
| recycling | (noun) the act of processing used or abandoned materials for use in creating new products | - |
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| (noun) used or abandoned materials for use in creating new products | - |
| red | (adjective) (especially of the face) reddened or suffused with or as if with blood from emotion or exertion | Synonyms: crimson, flushed, red-faced, reddened |
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| (adjective) of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies | Synonyms: blood-red, carmine, cerise, cherry-red, cherry, crimson, reddish, ruby-red, ruby, ruddy, scarlet |
| (adjective) characterized by violence or bloodshed | Synonyms: crimson, violent |
| (noun) red color or pigment; the chromatic color resembling the hue of blood | Synonyms: redness |
| (noun) emotionally charged terms used to refer to extreme radicals or revolutionaries | Synonyms: Bolshevik, bolshie, bolshy, Marxist |
| (noun) the amount by which the cost of a business exceeds its revenue | Synonyms: loss, red ink |
| redact | (noun) someone who puts text into appropriate form for publication | Synonyms: redactor, reviser, rewrite man, rewriter |
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| (verb) prepare for publication or presentation by correcting, revising, or adapting | Synonyms: edit |
| (verb) formulate in a particular style or language | Synonyms: cast, couch, frame, put |
| redaction | (noun) the act of putting something in writing | - |
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| (noun) putting something (as a literary work or a legislative bill) into acceptable form | Synonyms: editing |
| redactor | (noun) someone who puts text into appropriate form for publication | Synonyms: redact, reviser, rewrite man, rewriter |
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| redbelly | (noun) freshwater turtle of Chesapeake Bay tributaries having red markings on the lower shell | Synonyms: Pseudemys rubriventris, red-bellied terrapin, red-bellied turtle |
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| redberry | (noun) small spiny evergreen shrub of western United States and Mexico with minute flowers and bright red berries | Synonyms: red-berry, Rhamnus croceus |
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| (noun) North American perennial herb with alternately compound leaves and racemes of small white flowers followed by bright red oval poisonous berries | Synonyms: Actaea rubra, red-berry, red baneberry, snakeberry |
| redbird | (noun) crested thick-billed North American finch having bright red plumage in the male | Synonyms: cardinal, cardinal grosbeak, Cardinalis cardinalis, Richmondena Cardinalis |
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| (noun) the male is bright red with black wings and tail | Synonyms: firebird, Piranga olivacea, scarlet tanager |
| redbone | (noun) a speedy red or red-and-tan American hound | - |
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| redbreast | (noun) small Old World songbird with a reddish breast | Synonyms: Erithacus rubecola, Old World robin, robin, robin redbreast |
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| redbrick | (adjective) of or relating to British universities founded in the late 19th century or the 20th century | Synonyms: red-brick |
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| redbrush | (noun) common North American shrub with reddish purple twigs and white flowers | Synonyms: American dogwood, Cornus stolonifera, red dogwood, red osier, red osier dogwood |
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| redbud | (noun) small shrubby tree of eastern North America similar to the Judas tree having usually pink flowers; found in damp sheltered underwood | Synonyms: Cercis canadensis |
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| redbug | (noun) larval mite that sucks the blood of vertebrates including human beings causing intense irritation | Synonyms: chigger, harvest mite, jigger |
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| redcap | (noun) a porter who helps passengers with their baggage at a railroad station | - |
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| (noun) a member of the military police in Britain | - |
| redcoat | (noun) British soldier; so-called because of his red coat (especially during the American Revolution) | Synonyms: lobsterback |
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| redden | (verb) turn red, as if in embarrassment or shame | Synonyms: blush, crimson, flush |
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| (verb) turn red or redder | - |
| (verb) make red | - |
| reddened | (adjective) (especially of the face) reddened or suffused with or as if with blood from emotion or exertion | Synonyms: crimson, flushed, red-faced, red |
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| (adjective) lighted with red light as if with flames | Synonyms: ablaze, inflamed |
| reddish | (adjective) of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies | Synonyms: blood-red, carmine, cerise, cherry-red, cherry, crimson, red, ruby-red, ruby, ruddy, scarlet |
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| reddishness | (noun) The quality of being somewhat red. | - |
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| reddle | (noun) a red iron ore used in dyeing and marking | Synonyms: raddle, ruddle |
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| rede | (verb) give advice to | Synonyms: advise, counsel |
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| (verb) give an interpretation or explanation to | Synonyms: interpret |
| redecorate | (verb) redo the decoration of an apartment or house | - |
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| rededicate | (verb) dedicate anew | - |
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| rededication | (noun) a new dedication | - |
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| redeem | (verb) convert into cash; of commercial papers | - |
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| (verb) pay off (loans or promissory notes) | Synonyms: pay off |
| (verb) exchange or buy back for money; under threat | Synonyms: ransom |
| (verb) to turn in (vouchers or coupons) and receive something in exchange | - |
| (verb) restore the honor or worth of | - |
| (verb) save from sins | Synonyms: deliver, save |
| redeemable | (adjective) able to be converted into ready money or the equivalent | Synonyms: cashable |
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| (adjective) susceptible to improvement or reform | Synonyms: reformable |
| (adjective) recoverable upon payment or fulfilling a condition | - |
| redeemed | (adjective) saved from the bondage of sin | Synonyms: ransomed |
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| redeemer | (noun) someone who redeems or buys back (promissory notes or merchandise or commercial paper etc.) | - |
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| redeeming | (adjective) compensating for some fault or defect | - |
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| (adjective) bringing about salvation or redemption from sin | Synonyms: redemptive, saving |
| redefine | (verb) give a new or different definition of (a word) | - |
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| (verb) give a new or different definition to | - |
| redefinition | (noun) the act of giving a new definition | - |
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| redemption | (noun) the act of purchasing back something previously sold | Synonyms: buyback, repurchase |
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| (noun) (theology) the act of delivering from sin or saving from evil | Synonyms: salvation |
| (noun) repayment of the principal amount of a debt or security at or before maturity (as when a corporation repurchases its own stock) | - |
| redemptional | (adjective) of or relating to or resulting in redemption | Synonyms: redemptive, redemptory |
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| redemptive | (adjective) of or relating to or resulting in redemption | Synonyms: redemptional, redemptory |
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| (adjective) bringing about salvation or redemption from sin | Synonyms: redeeming, saving |
| redemptory | (adjective) of or relating to or resulting in redemption | Synonyms: redemptional, redemptive |
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| redeploy | (verb) deploy anew | - |
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| redeployment | (noun) the withdrawal and redistribution of forces in an attempt to use them more effectively | Synonyms: redisposition |
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| redeposit | (verb) deposit anew | - |
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| (verb) deposit once again | - |
| redeposition | (noun) deposition from one deposit to another | - |
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| redesign | (verb) design anew, make a new design for | - |
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| redetermination | (noun) determining again | - |
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| redetermine | (verb) fix, find, or establish again | - |
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| redevelop | (verb) change the plans for the use of (land) | - |
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| (verb) formulate or develop again, of an improved theory or hypothesis | Synonyms: reformulate |
| (verb) develop for a second time, in order to improve the contrast, colour, etc., of a negative or print | - |
| redevelopment | (noun) the act of improving by renewing and restoring | Synonyms: overhaul, renovation |
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| redeye | (noun) a night flight from which the passengers emerge with eyes red from lack of sleep | Synonyms: redeye flight |
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| redfish | (noun) male salmon that has recently spawned | - |
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| (noun) large edible fish found off coast of United States from Massachusetts to Mexico | Synonyms: channel bass, red drum, Sciaenops ocellatus |
| (noun) North Atlantic rockfish | Synonyms: ocean perch, rosefish |
| redhead | (noun) black-and-white North American woodpecker having a red head and neck | Synonyms: Melanerpes erythrocephalus, redheaded woodpecker |
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| (noun) North American diving duck with a grey-and-black body and reddish-brown head | Synonyms: Aythya americana |
| (noun) someone who has red hair | Synonyms: carrottop, red-header, redheader |
| redheaded | (adjective) having red hair and usually fair skin | - |
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| redheader | (noun) someone who has red hair | Synonyms: carrottop, red-header, redhead |
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| redhorse | (noun) North American sucker with reddish fins | Synonyms: redhorse sucker |
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| redirect | (verb) channel into a new direction | Synonyms: airt |
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| rediscover | (verb) discover again | - |
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| rediscovery | (noun) the act of discovering again | - |
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| redispose | (verb) dispose anew | - |
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| redisposition | (noun) the withdrawal and redistribution of forces in an attempt to use them more effectively | Synonyms: redeployment |
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| redistribute | (verb) distribute anew | - |
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| redistributed | (adjective) having population and industries relocated from urban to outlying areas | - |
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| redistribution | (noun) distributing again | - |
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| redline | (verb) discriminate in selling or renting housing in certain areas of a neighborhood | - |
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| redly | (adverb) displaying a red color | - |
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| redmaids | (noun) succulent carpet-forming plant having small brilliant reddish-pink flowers; southwestern United States | Synonyms: Calandrinia ciliata, red maids |
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