ramp

n (dated Brit sl 旧, 俚) swindle, esp one that involves charging excessively high prices 诈骗; （尤指）敲诈, 敲竹杠.

raison d'etre, raj, rajah (also raja), rake, rake-off, rakish, rakishly, rakishness, rallentando, rally, ram, ram-jet, Ramadan, ramble, rambler, rambling, rambunctious, ramekin, ramification, ramify, rampage, rampant, rampantly, rampart, ramrod, ramshackle, ran, ranch, rancher, rancid, rancidness, rancor, rancorous, rancorously, rancour (US rancor), rand, randily, randiness, random, random access (also direct access),