refrain, refrained, refraining, refrains.verbs
intransitive verb use.to hold oneself back; forbear.(refrained from swearing)
transitive verb use.to restrain or hold back; curb; abstain
refrainer, refrainment.noun
Music –-refrain
a phrase, verse, or group of verses repeated at intervals throughout a song or poem, especially at the end of each stanza; music for the refrain of a poem; a song or melody; a repeated utterance or theme

raison d'être.noun,.plural.raisons d'être
reason or justification for existing

result, resulted, resulting, results.intransitive verbs
to come about as a consequence; follow; to end in a particular way (a profligate lifestyle turns out to be nowhere city)
result.noun
the consequence of a particular action, operation, or course; an outcome; effect
resultful, resultless.adjectives
resultfulness.noun

resultant.adjective
issuing or following as a consequence or result
resultant.noun
something that results; an outcome
resultantly.adverb

recur, recurred, recurring, recurs.intransitive verbs
to happen, come up, or show up again or repeatedly; return; to return to one's attention or memory; to return in thought or discourse; to have recourse (recur to the use of a calculator)
recurrence.noun

recurrent.adjective
occurring or appearing again or repeatedly
recurrently.adverb

radical.adjective
arising from or going to a root or source; basic (a radical flaw in a plan); chose the radical solution of starting all over again; departing markedly from the usual or customary; extreme (radical opinions on education); favoring or effecting fundamental or revolutionary changes in current practices, conditions, or institutions (radical political views)
Linguistics – of or being a root: a radical form
radical.noun
one who advocates fundamental or revolutionary changes in current practices, conditions, or institutions: radicals seeking to overthrow the social order
Mathematics – the root of a quantity as indicated by the radical sign; symbol R An atom or a group of atoms with at least one unpaired electron
radically.adverb
radicalness.noun

rave, raved, raving, raves.verbs
intransitive verb use.to speak wildly, irrationally, or incoherently; to roar; rage (the screaming preacher ranted and raved upon the congregation, the storm raved along the coast); to speak with wild enthusiasm.(he raved about the new play)
transitive verb use.to utter in a frenzied manner
rave.noun
the act or an instance of raving; an extravagantly enthusiastic opinion or review (the play received raves)
rave.adjective
relating to or being an extravagantly enthusiastic opinion or review

radon.noun
symbol Rn – a colorless, radioactive, inert gaseous element formed by the radioactive decay of radium; it is used as a radiation source in radiotherapy and to produce neutrons for research; its most stable isotope is Rn 222 with a half-life of 3.82 days. Atomic number 86; melting point –71°C; boiling point –61.8°C; specific gravity (solid) 4. [rad(ium) + -on2.]

reimburse, reimbursed, reimbursing, reimburses.transitive verbs
to repay (money spent); refund; to pay back or compensate (another party) for money spent or losses incurred; re + imburse, to put in a purse, pay 
reimbursable.adjective
reimbursement.noun

recede, receded, receding, recedes.intransitive verbs
to move back or away from a limit, point, or mark (the flood waters finally receded) to slope backward; to become or seem to become fainter or more distant (with the passage of time, my unhappy memories of the place receded); to withdraw or retreat

restitution.noun
the act of restoring to the rightful owner something that has been taken away, lost, or surrendered; reparation; the act of making good or compensating for loss, damage, or injury; indemnification; a return to or restoration of a previous state or position
restitute, restituted, restituting, restitutes.transitive verbs
to bring back to a former condition; restore; to refund
intransitive verb use.to undergo restitution

repudiate, repudiated, repudiating, repudiates.transitive verbs
to reject the validity or authority of; to reject emphatically as unfounded, untrue, or unjust (repudiated the accusation); to refuse to recognize or pay (repudiate the unfair tax); to disown (a child, for example); to refuse to have any dealings with
repudiative.adjective
repudiator.noun

retract, retracted, retracting, retracts.transitive verbs
to take back; disavow (refused to retract the statement); to draw back or in (a plane retracting its landing gear); recede
intransitive verb use.to take something back or disavow it; to draw back
retractability or retractibility.noun
retractation.noun
retractable or retractible.adjective

retraction.noun
the act of retracting or the state of being retracted; the act of recanting or disavowing a previously held statement or belief; aformal statement of disavowal; something recanted or disavowed; the power of drawing back or of being drawn back

reverberate, reverberated, reverberating, reverberates.verbs
intransitive verb use.to resound in or as if in a succession of echoes; reecho; to be repeatedly reflected, as sound waves, heat, or light; to be forced or driven back; recoil or rebound transitive verb use.to reecho (a sound); echo; to reflect repeatedly; to drive or force back; repel
reverberator.noun
reverberation.noun
the act of reverberating; the condition of being reverberated; something reverberated; an echolike force or effect; a repercussion.(reverberations from thunder were experienced over a wide area)
reverberatory.adjective
produced or operating by reverberation; deflected or diverted, as flame or heat, onto material being treated; of, relating to, or being a reverberatory furnace
reverberatory.noun,.plural.reverberatories
a reverberatory furnace

resound, resounded, resounding, resounds.verbs
intransitive verb use.to be filled with sound; reverberate.(the school yard resounded with the laughter of children); to make a loud, long, or reverberating sound (rolls of thunder resounded in the valley); to become famous, celebrated, or extolled (the party was a resounding success); to sound loudly; ring
transitive verb use.to send back (sound); echo; to utter or emit loudly; to celebrate or praise, as in verse or song
resounding.adjective
resoundingly.adverb

ratel.noun
a courageous fighting carnivorous mammal (Mellivora capensis) of Africa and Asia, willing to attack cobras, cattle and even bison, having short legs and a thick coat that is dark below and whitish above, called a honey badger. Honey badgers are extremely difficult to kill. The skin is unusually tough and is attached loosely to the body, making it hard for other animals to grasp it. Animal bites, bee stings, or porcupine quills usually do not penetrate the honey badger's tough hide. As an added deterrent to predators, the anal glands of honey badgers can emit a foul smelling liquid.

When a bird called the Honey Guide finds a beehive it gives a series of characteristic calls to guide the Honey Badger (the Ratel) to it. The Honey Badger then uses its strong legs, claws and teeth to tear open the hive where both animals feed on the contents.

Honey badgers live in underground burrows that they dig with their strong legs and claws. They den in groups but often hunt alone or in pairs. After mating, the female experiences delayed implantation, which means the fertilized eggs do not start developing for several months..Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation. All rights reserved.