Synonyms to rarefy

add to, aggrandize, amplify, augment, bloat, blow up, boost, broaden, build, build up, bulk, bulk out, crescendo, develop, dilate, distend, enlarge, exalt, expand, extend, fatten, fill out, fortify, hike, hike up, huff, increase, inflate, jack up, jump up, lengthen, magnify, maximize, parlay, puff, puff up, pump, pump up, put up, pyramid, raise, recruit, reinforce, strengthen, stretch, sufflate, supplement, swell, thicken, up, widen, adulterate, alloy, attenuate, baptize, bastardize, canker, cheapen, coarsen, confound, contaminate, cook, corrupt, cut, deacon, debase, debauch, defile, deflower, degenerate, degrade, denaturalize, denature, deprave, desecrate, despoil, devalue, dilute, distort, doctor, doctor up, etherealize, fake, falsify, infect, irrigate, juggle, lace, load, manipulate, misuse, pack, pervert, plant, poison, pollute, prostitute, ravage, ravish, reduce, retouch, rig, salt, sophisticate, spike, stack, subtilize, taint, tamper with, thin, thin out, twist, ulcerate, violate, vitiate, vulgarize, warp, water, water down, weaken, weight, advance, apotheose, apotheosi