N. energy, physical energy, force, power &c. # 157, keenness, intensity, vigor, strength, elasticity, go, high pressure, fire, rush, acrimony, acritude, causiticity, virulence, poignancy, harshness, severity, edge, point, pungency, cantharides, seasoning, activity, agitation, effervescence, ferment, fermentation, ebullition, splutter, perturbation, stir, bustle, voluntary energy, quicksilver, resolution, exertion, excitation

V. give -energy, energize, stimulate, kindle, excite, exert, sharpen, intensify, inflame, wind up, strike home, into home, hard home, make an impression

Adj. strong, energetic, forcible, active, intense, deep-dyed, severe, keen, vivid, sharp, acute, incisive, trenchant, brisk, rousing, irritation, poignant, virulent, caustic, corrosive, mordant, harsh, stringent, double-edged, double-shotted, double-distilled, drastic, escharotic|, racy, potent, radioactive

Adv. strongly, fortiter in re, with telling effect

Phr. the steam is up, vires acquirit eundo, "the race by vigor not by vaunts is won"