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relativity
relativity: n.
1 the fact or state of being relative.
2 Physics a (special theory of relativity) a theory based on the principle that all motion is relative and that light has constant velocity, regarding space-time as a four-dimensional continuum, and modifying previous conceptions of geometry. b (general theory of relativity) a theory extending this to gravitation and accelerated motion.

reciprocity
reciprocity: n.
1 the condition of being reciprocal.
2 mutual action.
3 give and take, esp. the interchange of privileges between countries and organizations. [F r÷ciprocit÷ f. r÷ciproque f. L reciprocus (as RECIPROCATE)]

raillery
raillery: n. (pl. -ies.
1 good-humoured ridicule; rallying.
2 an instance of this. [F raillerie (as RAIL(2))]

reasonable
reasonable: adj.
1 having sound judgement; moderate; ready to listen to reason.
2 in accordance with reason; not absurd.
3 a within the limits of reason; not greatly less or more than might be expected. b inexpensive; not extortionate. c tolerable, fair.
4 archaic endowed with the faculty of reason. øøreasonableness n. reasonably adv. [ME f. OF raisonable (as REASON) after L rationabilis]

revolution
revolution: n.
1 a the forcible overthrow of a government or social order, in favour of a new system. b (in Marxism) the replacement of one ruling class by another; the class struggle which is expected to lead to political change and the triumph of communism.
2 any fundamental change or reversal of conditions.
3 the act or an instance of revolving.
4 a motion in orbit or a circular course or round an axis or centre; rotation. b the single completion of an orbit or rotation. c the time taken for this.
5 a cyclic recurrence. ørevolution counter a device for indicating the number or rate of revolutions of an engine etc. øørevolutionism n. revolutionist n. [ME f. OF revolution or LL revolutio (as REVOLVE)]

rubbishyroller
roller: n.
1 a a hard revolving cylinder for smoothing the ground, spreading ink or paint, crushing or stamping, rolling up cloth on, hanging a towel on, etc., used alone or as a rotating part of a machine. b a cylinder for diminishing friction when moving a heavy object.
2 a small cylinder on which hair is rolled for setting.
3 a long swelling wave.
4 (also roller bandage) a long surgical bandage rolled up for convenient application.
5 a kind of tumbler-pigeon.
6 a any brilliantly plumaged bird of the family Coraciidae, with characteristic tumbling display-flight. b a breed of canary with a trilling song. øroller bearing a bearing like a ball-bearing but with small cylinders instead of balls. roller-coaster n. a switchback at a fair etc. --adj. that goes up and down, or changes, suddenly and repeatedly. --v.intr. (or roller-coast) go up and down or change in this way. roller-skate see SKATE(1) ). roller-skater a person who roller-skates. roller towel a towel with the ends joined, hung on a roller.

resignation
resignation: n.
1 the act or an instance of resigning, esp. from one's job or office.
2 the document etc. conveying this intention.
3 the state of being resigned; the uncomplaining endurance of a sorrow or difficulty. [ME f. OF f. med.L resignatio (as RESIGN)]

rhythm
rhythm: n.
1 a measured flow of words and phrases in verse or prose determined by various relations of long and short or accented and unaccented syllables.
2 the aspect of musical composition concerned with periodical accent and the duration of notes.
3 Physiol. movement with a regular succession of strong and weak elements.
4 a regularly recurring sequence of events.
5 Art a harmonious correlation of parts. ørhythm and blues popular music with a blues theme and a strong rhythm. rhythm method birth control by avoiding sexual intercourse when ovulation is likely to occur. rhythm section the part of a dance band or jazz band mainly supplying rhythm, usu. consisting of piano, bass, and drums. øørhythmless adj. [F rhythme or L rhythmus f. Gk rhuthmos, rel. to rheo flow]

reading
reading: n.
1 a the act or an instance of reading or perusing (the reading of the will). b matter to be read (have plenty of reading with me). c the specified quality of this (it made exciting reading).
2 (in comb.) used for reading (reading-lamp; reading-room).
3 literary knowledge (a person of wide reading).
4 an entertainment at which a play, poems, etc., are read (poetry reading).
5 a figure etc. shown by a meter or other recording instrument.
6 an interpretation or view taken (what is your reading of the facts?).
7 an interpretation made (of drama, music, etc.).
8 each of the successive occasions on which a bill must be presented to a legislature for acceptance (see also first readingsecond readingthird reading).
9 the version of a text, or the particular wording, conjectured or given by an editor etc. øreading age reading ability expressed as the age for which the same ability is calculated as average (has a reading age of eight). [OE (as READ)]

railroad
railroad: n. & v. --n. esp. US = RAILWAY. --v.tr.
1 (often foll. by to, into, through, etc.) rush or coerce (a person or thing) (railroaded me into going too).
2 send (a person) to prison by means of false evidence.

reebok
reebok: n. (also rhebok) a small S. African antelope, Pelea capreolus, with sharp horns. [Du., = roebuck]

reflection
reflection: n. (also reflexion.
1 the act or an instance of reflecting; the process of being reflected.
2 a reflected light, heat, or colour. b a reflected image.
3 reconsideration (on reflection).
4 (often foll. by on) discredit or a thing bringing discredit.
5 (often foll. by on, upon) an idea arising in the mind; a comment or apophthegm. øangle of reflection Physics the angle made by a reflected ray with a perpendicular to the reflecting surface. øøreflectional adj. [ME f. OF reflexion or LL reflexio (as REFLECT), with assim. to reflect]

representation
representation: n.
1 the act or an instance of representing or being represented.
2 a thing (esp. a painting etc.) that represents another.
3 (esp. in pl.) a statement made by way of allegation or to convey opinion. [ME f. OF representation or L repraesentatio (as REPRESENT)]

removerreverence
reverence: n. & v. --n.
1 a the act of revering or the state of being revered (hold in reverence; feel reverence for). b the capacity for revering (lacks reverence).
2 archaic a gesture showing that one reveres; a bow or curtsy.
3 (Reverence) a title used of or to some members of the clergy. --v.tr. regard or treat with reverence. [ME f. OF f. L reverentia (as REVERE)]

reoccupy
reoccupy: v.tr. (-ies, -ied) occupy again. øøreoccupation n.

reduction
reduction: n.
1 the act or an instance of reducing; the process of being reduced.
2 an amount by which prices etc. are reduced.
3 a reduced copy of a picture etc.
4 an arrangement of an orchestral score for piano etc. øøreductive adj. [ME f. OF reduction or L reductio (as REDUCE)]

remove
remove: v. & n. --v.
1 tr. take off or away from the place or position occupied (remove the top carefully).
2 tr. a move or take to another place; change the situation of (will you remove the tea things?). b get rid of; eliminate (will remove all doubts).
3 tr. cause to be no longer present or available; take away (all privileges were removed).
4 tr. (often foll. by from) dismiss (from office).
5 tr. colloq. kill, assassinate.
6 tr. (in passive; foll. by from) distant or remote in condition (the country is not far removed from anarchy).
7 tr. (as removed adj.) (esp. of cousins) separated by a specified number of steps of descent (a first cousin twice removed = a grandchild of a first cousin).
8 formal a intr. (usu. foll. by from, to) change one's home or place of residence. b tr. conduct the removal of. --n.
1 a degree or remoteness; a distance.
2 a stage in a gradation; a degree (is several removes from what I expected).
3 Brit. a form or division in some schools. øøremovable adj. removability n. remover n. (esp. in sense 8b of v.). [ME f. OF removeir f. L removere remot- (as RE-, movere move)]

realtor
realtor: n. US a real-estate agent, esp. (Realtor) a member of the National Association of Realtors.

reckoning
reckoning: n.
1 the act or an instance of counting or calculating.
2 a consideration or opinion.
3 a the settlement of an account. b an account. øday of reckoning the time when something must be atoned for or avenged.

reckless
reckless: adj. disregarding the consequences or danger etc.; lacking caution; rash. øørecklessly adv. recklessness n. [OE recceleas (as RECK)]

revelation
revelation: n.
1 a the act or an instance of revealing, esp. the supposed disclosure of knowledge to humankind by a divine or supernatural agency. b knowledge disclosed in this way.
2 a striking disclosure (it was a revelation to me).
3 (Revelation or colloq. Revelations) (in full the Revelation of St John the Divine) the last book of the New Testament, describing visions of heaven. øørevelational adj. [ME f. OF revelation or LL revelatio (as REVEAL(1))]

rambunctious
rambunctious: adj. US colloq.
1 uncontrollably exuberant.
2 unruly. øørambunctiously adv. rambunctiousness n. [19th c.: orig. unkn.]

requirementready
ready: adj., adv., n., & v. --adj. (readier, readiest) (usu. predic..
1 with preparations complete (dinner is ready).
2 in a fit state (are you ready to go?).
3 willing, inclined, or resolved (he is always ready to complain; I am ready for anything).
4 within reach; easily secured (a ready source of income).
5 fit for immediate use (was ready to hand).
6 immediate, unqualified (found ready acceptance).
7 prompt, quick, facile (is always ready with excuses; has a ready wit).
8 (foll. by to + infin.) about to do something (a bud just ready to burst).
9 provided beforehand. --adv.
1 beforehand.
2 so as not to require doing when the time comes for use (the cases are ready packed). --n. (pl. -ies) sl.
1 (prec. by the) = ready money.
2 (in pl.) bank notes. --v.tr. (-ies, -ied) make ready; prepare. øat the ready ready for action. make ready prepare. ready-made (or -to-wear) (esp. of clothes) made in a standard size, not to measure. ready-mix (or -mixed) (of concrete, paint, food, etc.) having some or all of the constituents already mixed together. ready mone.
1 actual coin or notes.
2 payment on the spot. ready reckoner a book or table listing standard numerical calculations as used esp. in commerce. ready, steady (or get set), go the usual formula for starting a race. øøreadiness n. [ME ródi(g), re(a)di, f. OE róde f. Gmc]

relationship
relationship: n.
1 the fact or state of being related.
2 colloq. a a connection or association (enjoyed a good working relationship). b an emotional (esp. sexual) association between two people.
3 a condition or character due to being related.
4 kinship.

report
report: v. & n. --v.
1 tr. a bring back or give an account of. b state as fact or news, narrate or describe or repeat, esp. as an eyewitness or hearer etc. c relate as spoken by another.
2 tr. make an official or formal statement about.
3 tr. (often foll. by to) name or specify (an offender or offence) (shall report you for insubordination; reported them to the police).
4 intr. (often foll. by to) present oneself to a person as having returned or arrived (report to the manager on arrival).
5 tr. (also absol.) take down word for word or summarize or write a description of for publication.
6 intr. make or draw up or send in a report.
7 intr. (often foll. by to) be responsible (to a superior, supervisor, etc.) (reports directly to the managing director).
8 tr. Parl. (of a committee chairman) announce that the committee has dealt with (a bill).
9 intr. (often foll. by of) give a report to convey that one is well, badly, etc. impressed (reports well of the prospects). --n.
1 an account given or opinion formally expressed after investigation or consideration.
2 a description, summary, or reproduction of a scene or speech or law case, esp. for newspaper publication or broadcast.
3 common talk; rumour.
4 the way a person or thing is spoken of (I hear a good report of you).
5 a periodical statement on (esp. a school pupil's) work, conduct, etc.
6 the sound of an explosion. øreport back deliver a report to the person, organization, etc. for whom one acts etc. reported speech the speaker's words with the changes of person, tense, etc. usual in reports, e.g. he said that he would go (opp. direct speech). report progress state what has been done so far. report stage (in the UK) the debate on a bill in the House of Commons or House of Lords after it is reported. øøreportable adj. reportedly adv. [ME f. OF reporter f. L reportare (as RE-, portare bring)]