R&Dabbr. department in a company that develops new products

radiate v. to send out rays or waves; to issue or emerge in rays or waves

raise n. increase in salary; wage increase

raise v. to elevate; to lift; to excite; to arouse; to cause; to bring about; to grow; to cultivate

ranches n. farm with large pastureland for raising livestock

randomly adv. accidentally; by chance

range n. mountain chain; meadow; pasture; scope; extent; shooting gallery; field; domain; assortment

range v. to determine the scope of a target; to extend; to stretch; to vary; to fluctuate within certain boundaries

rank v. to arrange in a line; to arrange in a row; to grade; to classify; to assign a rank

rarely adv. infrequently; not often; seldom

rate n. proportion between two things; price, cost; speed, pace; tax, assessment

rate v. to assess, to appraise, to determine value; to grade, to classify, to sort

rational adj. logical; reasonable; intelligent; prudent; expressible as a whole number (Mathematics)

razor n. a sharp-edged cutting instrument used especially for shaving the face or other body parts; an electric instrument with vibrating or rotating blades used for shaving

razor v. to shave, cut, or remove with or as with a razor

readership n. total number of people who subscribe to a particular publication

readiness n. preparedness; willingness; promptness; quickness

rear adj. back; hind

rear n. back end; hindmost unit of an army (or fleet, etc.)

reasonable adj. rational; logical; intelligent; wise; plausible; likely; credible

rebound n. backlash

rebound v. to spring back

rebuild v. to reconstruct; to erect again

recant v. to give up; to renounce; to deny; to disavow; to retract

recap v. to reclose with a cap; to replace a cap; to put new treads onto a tire; to recapitulate; to summarize; to review with a short summary

receipt n. bill of sale; written statement of purchases

reception n. acceptance; event in which guests are formally welcomed by their host; check-in

receptionist n. person who greets visitors or clients on the telephone and upon their arrival

recession n. slow economy, period characterized by a decline in the gross domestic product during two or more consecutive quarters; ebb, decline; withdrawal; act of receding

recipe n. a set of directions with a list of ingredients for making or preparing something, especially food; a formula for or means to a desired end

recipient n. person who accepts; person who takes or gets

reclaim v. to demand the return of property; to regain possession; to repossess

recognition n. acknowledgment; identification

recognizable adj. identifiable; determinable; able to be distinguished; can be recognized

recognize v. to identify; to acknowledge; to know; to admit; to acknowledge as true

recommend v. to advocate; to endorse; to speak well of; to advise; to suggest

recommendation n. endorsement; approval; letter of reference; suggestion; advice

recompense v. to award compensation to; to award compensation for; make a return for

reconsider v. to contemplate again

reconstruct v. to construct again; rebuild; to assemble or build again mentally; re-create; to cause to adopt a new attitude or outlook

recover v. to get well; to get back; to regain; to obtain again

recovery n. recuperation; getting well; return

recruit n. new member of a group; one who is newly enlisted or drafted into the armed forces

recruit v. to enlist or draft new members (esp. for the armed forces); to gain; to obtain; to procure

recruitment n. act of enlisting or drafting new members (esp. into the armed forces)

rectangle n. parallelogram

rectify v. to fix; to repair; to correct; to calibrate; to adjust

redemption n. the act of redeeming or the condition of having been redeemed; recovery of something pawned or mortgaged; the payment of an obligation, as a government's payment of the value of its bonds

refer v. to send; to direct; to ascribe to; to relate to; to pertain to; to apply to; to call attention to; to allude to