N. unsubstantiality, insubstantiality, nothingness, nihility, no degree, no part, no quantity, no thing, nothing, naught, nil, nullity, zero, cipher, no one, nobody, never a one, ne'er a one, no such thing, none in the world, nothing whatever, nothing at all, nothing on earth, not a particle, all talk, moonshine, stuff and nonsense, matter of no importance, matter of no consequence, thing of naught, man of straw, john doe and richard roe, faggot voter, nominis umbra, nonentity, flash in the pan, vox et praeterea nihil, shadow, phantom, dream, ignis fatuus, "such stuff as dreams are made of", air, thin air, vapor, bubble, "baseless fabric of a vision", mockery, hollowness, blank, void, inanity, fool's paradise

V. vanish, evaporate, fade, dissolve, melt away, disappear

Adj. unsubstantial, baseless, groundless, ungrounded, without foundation, having no foundation, visionary, immaterial, spectral, dreamy, shadowy, ethereal, airy, cloud built, cloud formed, gossamery, illusory, insubstantial, unreal, vacant, vacuous, empty, eviscerated, blank, hollow, nominal, null, inane

Phr. there's nothing in it, "an ocean of dreams without a sound", 3, formal existence internal conditions

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. structure (form) 240, organization, # anatomy, frame, mold, fabric, construction, framework, carcass, architecture, stratification, cleavage, substance, stuff, compages, parenchyma, constitution, staple, organism, organography, osteology, myology, splanchnology, neurology, angiography, adeology, angiography, adenography, texture, surface texture, intertexture, contexture, tissue, grain, web, surface, warp and woof, warp and weft, tooth, nap, flatness (smoothness) 255, fineness of grain, coarseness of grain, dry goods, silk, satin, muslin, burlap, histology

Adj. structural, organic, anatomic, anatomical, textural, textile, fine grained, coarse grained, fine, delicate, subtile, gossamery, filmy, silky, satiny, coarse, homespun, rough, gritty, smooth, smooth as silk, smooth as satin