| 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 | - |
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| (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 | - |
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| (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 | - |
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| (noun) the phenomenon of vitality and freshness being restored | Synonyms: greening |
| rejuvenescence | (noun) A renewal of youthful characteristics or vitality. | - |
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| relapse | (noun) a failure to maintain a higher state | Synonyms: backsliding, lapse, lapsing, relapsing, reversion, reverting |
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| relapsing | (noun) a failure to maintain a higher state | Synonyms: backsliding, lapse, lapsing, relapse, reversion, reverting |
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| relatedness | (noun) a particular manner of connectedness | - |
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| relation | (noun) an abstraction belonging to or characteristic of two entities or parts together | - |
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| (noun) (usually plural) mutual dealings or connections among persons or groups | - |
| (noun) sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur | Synonyms: carnal knowledge, coition, coitus, copulation, intercourse, sex act, sexual congress, sexual intercourse, sexual relation |
| (noun) (law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time | Synonyms: relation back |
| (noun) an act of narration | Synonyms: recounting, telling |
| (noun) a person related by blood or marriage | Synonyms: relative |
| relations | (noun) mutual dealings or connections or communications among persons or groups | Synonyms: dealings |
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| relationship | (noun) a relation between people; (`relationship' is often used where `relation' would serve, as in `the relationship between inflation and unemployment', but the preferred usage of `relationship' is for human relations or states of relatedness) | Synonyms: human relationship |
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| (noun) (anthropology) relatedness or connection by blood or marriage or adoption | Synonyms: family relationship, kinship |
| (noun) a state of connectedness between people (especially an emotional connection) | - |
| (noun) a state involving mutual dealings between people or parties or countries | - |
| relative | (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congenator, congener, congeneric |
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| (noun) a person related by blood or marriage | Synonyms: relation |
| relativisation | (noun) the act or result of making relative or regarding as relative rather than absolute. | Synonyms: relativization |
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| relativism | (noun) (philosophy) the philosophical doctrine that all criteria of judgment are relative to the individuals and situations involved | - |
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| relativity | (noun) the quality of being relative and having significance only in relation to something else | - |
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| (noun) (physics) the theory that space and time are relative concepts rather than absolute concepts | Synonyms: Einstein's theory of relativity, relativity theory, theory of relativity |
| relativization | (noun) the act or result of making relative or regarding as relative rather than absolute. | Synonyms: relativisation |
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| relatum | (noun) a term in a proposition that is related to the referent of the proposition | - |
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| relaxant | (noun) a drug that relaxes and relieves tension | - |
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| relaxation | (noun) freedom from activity (work or strain or responsibility) | Synonyms: ease, repose, rest |
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| (noun) the act of making less strict | Synonyms: liberalisation, liberalization |
| (noun) a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount | Synonyms: relaxation method |
| (noun) an occurrence of control or strength weakening | Synonyms: loosening, slackening |
| (noun) a feeling of refreshing tranquility and an absence of tension or worry | Synonyms: easiness |
| (noun) (physics) the exponential return of a system to equilibrium after a disturbance | Synonyms: relaxation behavior |
| (noun) (physiology) the gradual lengthening of inactive muscle or muscle fibers | - |
| relaxedness | (noun) The quality of being eased or loosened, or of having an easy-going mood or temperament. | - |
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| relaxer | (noun) any agent that produces relaxation | - |
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| relaxin | (noun) hormone secreted by the corpus luteum during the last days of pregnancy; relaxes the pelvic ligaments and prepares the uterus for labor | - |
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| relay | (noun) the act of passing something along from one person or group to another | - |
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| (noun) electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit | Synonyms: electrical relay |
| (noun) a race between teams; each member runs or swims part of the distance | Synonyms: relay race |
| (noun) a crew of workers who relieve another crew | - |
| (noun) a fresh team to relieve weary draft animals | - |
| release | (noun) activity that frees or expresses creative energy or emotion | Synonyms: outlet, vent |
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| (noun) the act of liberating someone or something | Synonyms: freeing, liberation |
| (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: discharge, dismissal, dismission, firing, liberation, sack, sacking |
| (noun) the act of allowing a fluid to escape | Synonyms: spill, spillage |
| (noun) a formal written statement of relinquishment | Synonyms: discharge, waiver |
| (noun) (music) the act or manner of terminating a musical phrase or tone | Synonyms: tone ending |
| (noun) merchandise issued for sale or public showing (especially a record or film) | - |
| (noun) a device that when pressed will release part of a mechanism | Synonyms: button |
| (noun) an announcement distributed to members of the press in order to supplement or replace an oral presentation | Synonyms: handout, press release |
| (noun) a legal document evidencing the discharge of a debt or obligation | Synonyms: acquittance |
| (noun) euphemistic expressions for death | Synonyms: departure, exit, expiration, going, loss, passing |
| (noun) a process that liberates or discharges something | - |
| relegating | (noun) authorizing subordinates to make certain decisions | Synonyms: delegating, delegation, deputation, relegation |
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| relegation | (noun) authorizing subordinates to make certain decisions | Synonyms: delegating, delegation, deputation, relegating |
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| (noun) mild banishment; consignment to an inferior position | - |
| (noun) the act of assigning (someone or something) to a particular class or category | - |
| relentlessness | (noun) mercilessness characterized by an unwillingness to relent or let up | Synonyms: inexorability, inexorableness |
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| relevance | (noun) the relation of something to the matter at hand | Synonyms: relevancy |
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| relevancy | (noun) the relation of something to the matter at hand | Synonyms: relevance |
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| reliability | (noun) the quality of being dependable or reliable | Synonyms: dependability, dependableness, reliableness |
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| reliableness | (noun) the quality of being dependable or reliable | Synonyms: dependability, dependableness, reliability |
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| reliance | (noun) certainty based on past experience | Synonyms: trust |
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| (noun) the state of relying on something | - |
| relic | (noun) an antiquity that has survived from the distant past | - |
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| (noun) something of sentimental value | Synonyms: keepsake, souvenir, token |
| relict | (noun) geological feature that is a remnant of a pre-existing formation after other parts have disappeared | - |
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| (noun) an organism or species surviving as a remnant of an otherwise extinct flora or fauna in an environment much changed from that in which it originated | - |
| relief | (noun) aid for the aged or indigent or handicapped | - |
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| (noun) the act of reducing something unpleasant (as pain or annoyance) | Synonyms: alleviation, easement, easing |
| (noun) assistance in time of difficulty | Synonyms: ministration, succor, succour |
| (noun) the act of freeing a city or town that has been besieged | - |
| (noun) sculpture consisting of shapes carved on a surface so as to stand out from the surrounding background | Synonyms: embossment, relievo, rilievo, sculptural relief |
| (noun) a change for the better | Synonyms: easing, moderation |
| (noun) the feeling that comes when something burdensome is removed or reduced | Synonyms: alleviation, assuagement |
| (noun) someone who takes the place of another (as when things get dangerous or difficult) | Synonyms: backup, backup man, fill-in, reliever, stand-in, substitute |
| (noun) (law) redress awarded by a court | - |
| (noun) the condition of being comfortable or relieved (especially after being relieved of distress) | Synonyms: ease |
| (noun) a pause for relaxation | Synonyms: respite, rest, rest period |
| reliever | (noun) a pitcher who does not start the game | Synonyms: fireman, relief pitcher |
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| (noun) someone who takes the place of another (as when things get dangerous or difficult) | Synonyms: backup, backup man, fill-in, relief, stand-in, substitute |
| (noun) a person who reduces the intensity (e.g., of fears) and calms and pacifies | Synonyms: allayer, comforter |
| relievo | (noun) sculpture consisting of shapes carved on a surface so as to stand out from the surrounding background | Synonyms: embossment, relief, rilievo, sculptural relief |
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| religion | (noun) a strong belief in a supernatural power or powers that control human destiny | Synonyms: faith, religious belief |
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| (noun) an institution to express belief in a divine power | Synonyms: faith, organized religion |
| religionism | (noun) exaggerated or affected piety and religious zeal | Synonyms: pietism, religiosity, religiousism |
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| (noun) exaggerated religious zealotry | - |
| religionist | (noun) a person addicted to religion or a religious zealot | - |
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| religiosity | (noun) exaggerated or affected piety and religious zeal | Synonyms: pietism, religionism, religiousism |
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| religious | (noun) a member of a religious order who is bound by vows of poverty and chastity and obedience | - |
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| religiousism | (noun) exaggerated or affected piety and religious zeal | Synonyms: pietism, religionism, religiosity |
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| religiousness | (noun) piety by virtue of being devout | Synonyms: devoutness |
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| (noun) the quality of being extremely conscientious | - |
| relinquishing | (noun) the act of giving up and abandoning a struggle or task etc. | Synonyms: relinquishment |
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| (noun) a verbal act of renouncing a claim or right or position etc. | Synonyms: relinquishment |
| relinquishment | (noun) the act of giving up and abandoning a struggle or task etc. | Synonyms: relinquishing |
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| (noun) a verbal act of renouncing a claim or right or position etc. | Synonyms: relinquishing |
| reliquary | (noun) a container where religious relics are stored or displayed (especially relics of saints) | - |
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| relish | (noun) the taste experience when a savoury condiment is taken into the mouth | Synonyms: flavor, flavour, nip, sapidity, savor, savour, smack, tang |
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| (noun) vigorous and enthusiastic enjoyment | Synonyms: gusto, zest, zestfulness |
| (noun) spicy or savory condiment | - |
| relishing | (noun) taking a small amount into the mouth to test its quality | Synonyms: degustation, savoring, savouring, tasting |
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| relistening | (noun) the act of hearing again | Synonyms: rehearing |
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| reliving | (noun) a recurrence of a prior experience | Synonyms: re-experiencing |
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| relocation | (noun) the act of changing your residence or place of business | Synonyms: move |
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| (noun) the transportation of people (as a family or colony) to a new settlement (as after an upheaval of some kind) | Synonyms: resettlement |