| reflux | (noun) the outward flow of the tide | Synonyms: ebb |
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| (noun) an abnormal backward flow of body fluids | - |
| refocusing | (noun) focusing again | - |
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| reforestation | (noun) the restoration (replanting) of a forest that had been reduced by fire or cutting | Synonyms: re-afforestation |
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| reform | (noun) a change for the better as a result of correcting abuses | - |
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| (noun) a campaign aimed to correct abuses or malpractices | - |
| (noun) self-improvement in behavior or morals by abandoning some vice | - |
| reformation | (noun) rescuing from error and returning to a rightful course | Synonyms: reclamation |
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| (noun) 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 or political or religious affairs | - |
| reformatory | (noun) correctional institution for the detention and discipline and training of young or first offenders | Synonyms: reform school, training school |
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| reformer | (noun) an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel | - |
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| (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformist, social reformer |
| reformism | (noun) a doctrine of reform | - |
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| reformist | (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformer, social reformer |
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| refraction | (noun) the amount by which a propagating wave is bent | Synonyms: deflection, deflexion |
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| (noun) the change in direction of a propagating wave (light or sound) when passing from one medium to another | - |
| refractiveness | (noun) the physical property of a medium as determined by its index of refraction | Synonyms: refractivity |
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| refractivity | (noun) the physical property of a medium as determined by its index of refraction | Synonyms: refractiveness |
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| refractometer | (noun) measuring instrument for measuring the refractive index of a substance | - |
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| refractoriness | (noun) the trait of being unmanageable | Synonyms: recalcitrance, recalcitrancy, unmanageableness |
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| refractory | (noun) lining consisting of material with a high melting point; used to line the inside walls of a furnace | Synonyms: furnace lining |
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| refrain | (noun) the part of a song where a soloist is joined by a group of singers | Synonyms: chorus |
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| refresher | (noun) a course that reviews and updates a topic for those who have not kept abreast of developments | Synonyms: refresher course |
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| (noun) a drink that refreshes | - |
| (noun) a fee (in addition to that marked on the brief) paid to counsel in a case that lasts more than one day | - |
| refreshment | (noun) activity that refreshes and recreates; activity that renews your health and spirits by enjoyment and relaxation | Synonyms: recreation |
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| (noun) snacks and drinks served as a light meal | - |
| refrigerant | (noun) any substance used to provide cooling (as in a refrigerator) | - |
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| refrigeration | (noun) deliberately lowering the body's temperature for therapeutic purposes | - |
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| (noun) the process of cooling or freezing (e.g., food) for preservative purposes | Synonyms: infrigidation |
| refrigerator | (noun) white goods in which food can be stored at low temperatures | Synonyms: icebox |
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| refueling | (noun) the activity of supplying or taking on fuel | Synonyms: fueling, fuelling |
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| refuge | (noun) act of turning to for assistance | Synonyms: recourse, resort |
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| (noun) a shelter from danger or hardship | Synonyms: asylum, sanctuary |
| (noun) something or someone turned to for assistance or security | Synonyms: recourse, resort |
| (noun) a safe place | Synonyms: safety |
| refugee | (noun) an exile who flees for safety | - |
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| refulgence | (noun) the quality of being bright and sending out rays of light | Synonyms: effulgence, radiance, radiancy, refulgency, shine |
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| refulgency | (noun) the quality of being bright and sending out rays of light | Synonyms: effulgence, radiance, radiancy, refulgence, shine |
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| refund | (noun) the act of returning money received previously | Synonyms: repayment |
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| (noun) money returned to a payer | - |
| refurbishment | (noun) the state of being restored to its former good condition | Synonyms: renovation, restoration |
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| refusal | (noun) a message refusing to accept something that is offered | - |
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| (noun) the act of refusing | - |
| refuse | (noun) food that is discarded (as from a kitchen) | Synonyms: food waste, garbage, scraps |
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| refutal | (noun) the act of determining that something is false | Synonyms: disproof, falsification, falsifying, refutation |
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| refutation | (noun) the act of determining that something is false | Synonyms: disproof, falsification, falsifying, refutal |
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| (noun) any evidence that helps to establish the falsity of something | Synonyms: disproof, falsification |
| (noun) the speech act of answering an attack on your assertions | Synonyms: defence, defense |
| refuter | (noun) a debater who refutes or disproves by offering contrary evidence or argument | Synonyms: confuter, disprover, rebutter |
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| regaining | (noun) getting something back again | Synonyms: restitution, restoration, return |
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| regalia | (noun) paraphernalia indicative of royalty (or other high office) | - |
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| (noun) especially fine or decorative clothing | Synonyms: array, raiment |
| regard | (noun) a long fixed look | Synonyms: gaze |
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| (noun) (usually preceded by `in') a detail or point | Synonyms: respect |
| (noun) paying particular notice (as to children or helpless people) | Synonyms: attentiveness, heed, paying attention |
| (noun) an attitude of admiration or esteem | Synonyms: esteem, respect |
| (noun) (usually plural) a polite expression of desire for someone's welfare | Synonyms: compliments, wish |
| (noun) a feeling of friendship and esteem | Synonyms: respect |
| (noun) the condition of being honored (esteemed or respected or well regarded) | Synonyms: esteem, respect |
| regatta | (noun) a meeting for boat races | - |
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| regency | (noun) the office of a regent | - |
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| (noun) the period of time during which a regent governs | - |
| regeneration | (noun) the activity of spiritual or physical renewal | - |
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| (noun) forming again (especially with improvements or removal of defects); renewing and reconstituting | Synonyms: re-formation |
| (noun) (biology) growth anew of lost tissue or destroyed parts or organs | - |
| (noun) feedback in phase with (augmenting) the input | Synonyms: positive feedback |
| regent | (noun) someone who rules during the absence or incapacity or minority of the country's monarch | - |
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| (noun) members of a governing board | Synonyms: trustee |
| regest | (noun) (archaic, obsolete) A register. | - |
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| reggae | (noun) popular music originating in the West Indies; repetitive bass riffs and regular chords played on the off beat by a guitar | - |
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| regicide | (noun) the act of killing a king | - |
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| (noun) someone who commits regicide; the killer of a king | - |
| regime | (noun) (medicine) a systematic plan for therapy (often including diet) | Synonyms: regimen |
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| (noun) the organization that is the governing authority of a political unit | Synonyms: authorities, government |
| regimen | (noun) (medicine) a systematic plan for therapy (often including diet) | Synonyms: regime |
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| regiment | (noun) army unit smaller than a division, which can be divided into several companies, squadrons, or batteries and often into two battalions. | - |
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| regimentals | (noun) the military uniform and insignia of a regiment | - |
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| regimentation | (noun) the imposition of order or discipline | - |
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| region | (noun) a part of an animal that has a special function or is supplied by a given artery or nerve | Synonyms: area |
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| (noun) a knowledge domain that you are interested in or are communicating about | Synonyms: realm |
| (noun) the extended spatial location of something | Synonyms: part |
| (noun) a large indefinite location on the surface of the Earth | - |
| (noun) the approximate amount of something (usually used prepositionally as in `in the region of') | Synonyms: neighborhood |
| regionalism | (noun) loyalty to the interests of a particular region | - |
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| (noun) a feature (as a pronunciation or expression or custom) that is characteristic of a particular region | - |
| (noun) a foreign policy that defines the international interests of a country in terms of particular geographic areas | - |
| regionality | (noun) The property of being of, or pertaining to, a specific region or district. | - |
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| (noun) The property of being of, or pertaining to, a large geographic region. | - |
| register | (noun) a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device | - |
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| (noun) an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room | - |
| (noun) a cashbox with an adding machine to register transactions; used in shops to add up the bill | Synonyms: cash register |
| (noun) (computer science) memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind | - |
| (noun) (music) the timbre that is characteristic of a certain range and manner of production of the human voice or of different pipe organ stops or of different musical instruments | - |
| (noun) an official written record of names or events or transactions | Synonyms: registry |
| (noun) a book in which names and transactions are listed | - |
| registrant | (noun) a person who is formally entered (along with others) in a register (and who obtains certain rights thereby) | - |
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| registrar | (noun) someone responsible for keeping records | Synonyms: record-keeper, recorder |
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| (noun) the administrator responsible for student records | - |
| (noun) a person employed to keep a record of the owners of stocks and bonds issued by the company | - |
| registration | (noun) the act of enrolling | Synonyms: enrollment, enrolment |
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| (noun) the act of adjusting something to match a standard | Synonyms: adjustment, readjustment |
| (noun) (music) the sound property resulting from a combination of organ stops used to perform a particular piece of music; the technique of selecting and adjusting organ stops | - |
| (noun) a document certifying an act of registering | - |
| (noun) the body of people (such as students) who register or enroll at the same time | Synonyms: enrollment |
| registry | (noun) an official written record of names or events or transactions | Synonyms: register |
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| regnellidium | (noun) small latex-containing aquatic fern of southern Brazil | Synonyms: Regnellidium diphyllum |
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| regosol | (noun) a type of soil consisting of unconsolidated material from freshly deposited alluvium or sand | - |
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| regress | (noun) returning to a former state | Synonyms: regression, retrogression, retroversion, reversion |
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| (noun) the reasoning involved when you assume the conclusion is true and reason backward to the evidence | Synonyms: reasoning backward |
| regression | (noun) returning to a former state | Synonyms: regress, retrogression, retroversion, reversion |
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| (noun) the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x) | Synonyms: regression toward the mean, simple regression, statistical regression |
| (noun) (psychiatry) a defense mechanism in which you flee from reality by assuming a more infantile state | - |
| (noun) an abnormal state in which development has stopped prematurely | Synonyms: arrested development, fixation, infantile fixation |
| regret | (noun) sadness associated with some wrong done or some disappointment | Synonyms: rue, ruefulness, sorrow |
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| regrets | (noun) a polite refusal of an invitation | Synonyms: declination |
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| regular | (noun) a garment size for persons of average height and weight | - |
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| (noun) a regular patron | Synonyms: fixture, habitue |
| (noun) a dependable follower (especially in party politics) | - |
| (noun) a soldier in the regular army | - |
| regularisation | (noun) the act of bringing to uniformity; making regular | Synonyms: regularization, regulation |
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| (noun) the condition of having been made regular (or more regular) | Synonyms: regularization |
| regularity | (noun) the quality of being characterized by a fixed principle or rate | - |
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| (noun) a property of polygons: the property of having equal sides and equal angles | Synonyms: geometrical regularity |
| regularization | (noun) the act of bringing to uniformity; making regular | Synonyms: regularisation, regulation |
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| (noun) the condition of having been made regular (or more regular) | Synonyms: regularisation |
| regulating | (noun) the act of controlling or directing according to rule | Synonyms: regulation |
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| regulation | (noun) the act of controlling or directing according to rule | Synonyms: regulating |
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| (noun) the act of bringing to uniformity; making regular | Synonyms: regularisation, regularization |
| (noun) a principle or condition that customarily governs behavior | Synonyms: rule |
| (noun) an authoritative command | Synonyms: ordinance |
| (noun) (embryology) the ability of an early embryo to continue normal development after its structure has been somehow damaged or altered | - |
| (noun) the state of being controlled or governed | - |
| regulator | (noun) any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc. | - |
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| (noun) a control that maintains a steady speed in a machine (as by controlling the supply of fuel) | Synonyms: governor |
| (noun) an official responsible for control and supervision of a particular activity or area of public interest | - |
| regur | (noun) a rich black loam of India | Synonyms: regur soil |
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| regurgitation | (noun) the reflex act of ejecting the contents of the stomach through the mouth | Synonyms: disgorgement, emesis, puking, vomit, vomiting |
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| (noun) recall after rote memorization | - |
| (noun) backflow of blood through a defective heart valve | - |
| rehabilitation | (noun) the conversion of wasteland into land suitable for use of habitation or cultivation | Synonyms: reclamation, renewal |
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| (noun) the restoration of someone to a useful place in society | - |
| (noun) the treatment of physical disabilities by massage and electrotherapy and exercises | - |
| (noun) vindication of a person's character and the re-establishment of that person's reputation | - |
| reharmonisation | (noun) a piece of music whose original harmony has been revised | Synonyms: reharmonization |
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| reharmonization | (noun) a piece of music whose original harmony has been revised | Synonyms: reharmonisation |
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| rehash | (noun) old material that is slightly reworked and used again | - |
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| rehearing | (noun) the act of hearing again | Synonyms: relistening |
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| rehearsal | (noun) (psychology) a form of practice; repetition of information (silently or aloud) in order to keep it in short-term memory | - |
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| (noun) a practice session in preparation for a public performance (as of a play or speech or concert) | Synonyms: dry run |
| reification | (noun) regarding something abstract as a material thing | Synonyms: hypostatisation, hypostatization |
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| (noun) representing a human being as a physical thing deprived of personal qualities or individuality | Synonyms: depersonalisation, depersonalization |
| reign | (noun) royal authority; the dominion of a monarch | Synonyms: sovereignty |
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| (noun) the period during which a monarch is sovereign | - |
| (noun) a period during which something or somebody is dominant or powerful | - |
| reimbursement | (noun) compensation paid (to someone) for damages or losses or money already spent etc. | - |
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| reimposition | (noun) imposition again | - |
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| rein | (noun) one of a pair of long straps (usually connected to the bit or the headpiece) used to control a horse | - |
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| (noun) any means of control | - |
| reincarnation | (noun) the Hindu or Buddhist doctrine that a person may be reborn successively into one of five classes of living beings (god or human or animal or hungry ghost or denizen of Hell) depending on the person's own actions | - |
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| (noun) a second or new birth | Synonyms: rebirth, renascence |
| (noun) embodiment in a new form (especially the reappearance or a person in another form) | - |
| reincarnationism | (noun) a doctrine that on the death of the body the soul migrates to or is born again in another body | - |
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| reindeer | (noun) Arctic deer with large antlers in both sexes; called `reindeer' in Eurasia and `caribou' in North America | Synonyms: caribou, Greenland caribou, Rangifer tarandus |
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| reinforcement | (noun) an act performed to strengthen approved behavior | Synonyms: reward |
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| (noun) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission | Synonyms: reenforcement, support |
| (noun) a device designed to provide additional strength | Synonyms: strengthener |
| (noun) (psychology) a stimulus that strengthens or weakens the behavior that produced it | Synonyms: reinforcer, reinforcing stimulus |
| (noun) information that makes more forcible or convincing | Synonyms: reenforcement |
| reinforcer | (noun) (psychology) a stimulus that strengthens or weakens the behavior that produced it | Synonyms: reinforcement, reinforcing stimulus |
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| reinstatement | (noun) the act of restoring someone to a previous position | - |
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| (noun) the condition of being reinstated | - |
| reinsurance | (noun) sharing the risk by insurance companies; part or all of the insurer's risk is assumed by other companies in return for part of the premium paid by the insured | - |
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| reinterpretation | (noun) a new or different interpretation | - |
|---|
| (noun) a new or different meaning | - |
| reintroduction | (noun) an act of renewed introduction | - |
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| reinvestment | (noun) a second or subsequent investment in the same thing. | - |
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| reissue | (noun) a publication (such as a book) that is reprinted without changes or editing and offered again for sale | Synonyms: reprint, reprinting |
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| reiteration | (noun) the act of repeating over and again (or an instance thereof) | Synonyms: reduplication |
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| reject | (noun) the person or thing that is rejected or set aside as inferior in quality | Synonyms: cull |
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| rejection | (noun) the act of rejecting something | - |
|---|
| (noun) the speech act of rejecting | - |
| (noun) (medicine) an immunological response that refuses to accept substances or organisms that are recognized as foreign | - |
| (noun) the state of being rejected | - |
| rejoicing | (noun) the utterance of sounds expressing great joy | Synonyms: exultation, jubilation |
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| (noun) a feeling of great happiness | - |
| rejoinder | (noun) a quick reply to a question or remark (especially a witty or critical one) | Synonyms: comeback, counter, replication, retort, return, riposte |
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| (noun) (law) a pleading made by a defendant in response to the plaintiff's replication | - |
| rejuvenation | (noun) the act of restoring to a more youthful condition | - |
|---|
| (noun) the phenomenon of vitality and freshness being restored | Synonyms: greening |
| rejuvenescence | (noun) A renewal of youthful characteristics or vitality. | - |
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