WordNet sense 1 (a condition of spiritual awareness; divine illumination):

illumination

WordNet sense 2 (having abundant light or illumination):

lighting

WordNet sense 3 ((physics) electromagnetic radiation that can produce a visual sensation):

visible light, visible radiation

WordNet sense 4 (a divine presence believed by Quakers to enlighten and guide the soul):

Inner Light, Christ Within, Light Within

WordNet sense 5 (the quality of being luminous; emitting or reflecting light):

brightness, luminosity, luminance, luminousness, brightness level

WordNet sense 6 (merriment expressed by a brightness or gleam or animation of countenance):

spark, sparkle, twinkle

WordNet sense 7 (the visual effect of illumination on objects or scenes as created in pictures):

lightness

WordNet sense 8 (a device for lighting or igniting fuel or charges or fires):

lighter, igniter, ignitor

WordNet sense 9 (any device serving as a source of illumination):

light source

WordNet sense 10 (cause to start burning; subject to fire or great heat):

ignite

WordNet sense 11 (weak and likely to lose consciousness):

faint, lightheaded, light-headed, swooning

WordNet sense 12 (affected by an impairment of normal physical or mental function):

ill, sick

WordNet sense 13 (very thin and insubstantial):

flimsy

WordNet sense 14 (of relatively small extent from one surface to the opposite or in cross section):

thin

WordNet sense 15 (marked by temperance in indulgence):

abstemious

WordNet sense 16 (not extreme in behavior):

temperate

WordNet sense 17 (less than the correct or legal or full amount often deliberately so):

scant, short

WordNet sense 18 (of a quantity not able to fulfill a need or requirement):

deficient, insufficient

WordNet sense 19 (used of vowels or syllables; pronounced with little or no stress):

unaccented, weak

WordNet sense 20 (not bearing a stress or accent):

unstressed

WordNet sense 21 (not important or noteworthy):

insignificant, unimportant

WordNet sense 22 (fall to somebody by assignment or lot):

fall

WordNet sense 23 (silly or trivial):

idle

WordNet sense 24 (not serious in content or attitude or behavior):

frivolous

WordNet sense 25 ((of sound or color) free from anything that dulls or dims):

clean, clear, unclouded

WordNet sense 26 (free of extraneous elements of any kind):

pure

WordNet sense 27 (to come to rest, settle):

alight, perch

WordNet sense 28 (get off (a horse)):

dismount, unhorse, get down, get off

WordNet sense 29 (moving easily and quickly; nimble):

lightsome, tripping

WordNet sense 30 ((of movement) having a light and springy step):

light-footed

WordNet sense 31 (having little impact):

easy, gentle, soft

WordNet sense 32 (characterized by a feeling of irresponsibility):

casual

WordNet sense 33 (not designed for heavy work):

light-duty

WordNet sense 34 (having relatively few calories):

lite, low-cal, calorie-free

WordNet sense 35 (without fat or fat solids):

fat-free, nonfat, fatless

WordNet sense 36 (tending to float on a liquid or rise in air or gas):

buoyant

WordNet sense 37 (having little or no perceptible weight; so light as to resemble air):

airy

WordNet sense 38 (begin to smoke):

light up, fire up

WordNet sense 39 (not demanding; requiring little if any patience or effort or skill):

undemanding

WordNet sense 40 ((of sleep) easily disturbed):

wakeful

WordNet sense 41 (not deep or strong; not affecting one deeply):

shallow

WordNet sense 42 ((used of soil) loose and large-grained in consistency):

friable, sandy

WordNet sense 43 (not compact or dense in structure or arrangement):

loose

WordNet sense 44 (very light colored; highly diluted with white):

pale

WordNet sense 45 ((used of color) having a relatively small amount of coloring agent):

light-colored

WordNet sense 46 (with few burdens):

lightly

WordNet sense 47 (casual and unrestrained in sexual behavior):

promiscuous, sluttish, wanton

WordNet sense 48 (not chaste):

unchaste

WordNet sense 49 (of summer nights in northern latitudes where the sun barely sets):

white

WordNet sense 50 (having lots of light either natural or artificial):

bright

WordNet sense 51 (make lighter or brighter):

illuminate, illumine, illume