N. levity, lightness, imponderability, # buoyancy, volatility, feather, dust, mote, down, thistle, down, flue, cobweb, gossamer, straw, cork, bubble, balloon, float, buoy, ether, air, leaven, ferment, barm, yeast, lighter-than-air balloon, helium balloon, hydrogen balloon, hot air balloon, convection, thermal draft, thermal

V. be light, float, rise, swim, be buoyed up, render light, lighten, leaven

Adj. light, subtile, airy, imponderous, imponderable, astatic, weightless, ethereal, sublimated, gossamery, suberose, suberous, uncompressed, volatile, buoyant, floating, portable, light as a feather, light as a thistle, light as air, lighter than air, rise like a balloon, float like a balloon, 1, solid matter

N. gaseity, vaporousness, flatulence, # flatulency, volatility, aeration, aerification, elastic fluid, gas, air, vapor, ether, steam, essence, fume, reek, effluvium, flatus, cloud, ammonia, ammoniacal gas, volatile alkali, vacuum, partial vacuum, pneumatics, pneumatostatics, aerostatics, aerodynamics, gasmeter, gasometer, air bladder, swimming bladder, sound (of a fish)

V. vaporize, evaporate, evanesce, gasify, emit vapor, diffuse

Adj. gaseous, aeriform, ethereal, aerial, airy, vaporous, volatile, evaporable, flatulent

N. vaporization, volatilization, gasification, # evaporation, vaporation, distillation, cupellation, cohobation, sublimination, exhalation, volatility, vaporizer, still, retort, fumigation, steaming, bay salt, chloride of sodium|, mister, spray, bubble, effervescence

V. render -gaseous, vaporize, volatilize, distill, sublime, evaporate, exhale, smoke, transpire, emit vapor, fume, reek, steam, fumigate, cohobate, finestill, bubble, sparge, effervesce, boil

Adj. volatilized, reeking, volatile, evaporable, vaporizable, bubbly, effervescent, boiling, 2. specific fluids