light vs face

light and face both are nouns.

Word	Noun	Adjective	Verb	Adverb
light	Yes	Yes	Yes	Yes
face	Yes	No	Yes	No

As nouns, face is a hypernym of light; that is, face is a word with a broader meaning than light:

light: merriment expressed by a brightness or gleam or animation of countenance
face: the feelings expressed on a person's face

Other hypernyms of light include verve, vitality, aspect, expression, facial expression, look.

light (noun)	face (noun)
any device serving as a source of illumination	a vertical surface of a building or cliff
a device for lighting or igniting fuel or charges or fires	the side upon which the use of a thing depends (usually the most prominent surface of an object)
the visual effect of illumination on objects or scenes as created in pictures	the striking or working surface of an implement
the quality of being luminous; emitting or reflecting light	the general outward appearance of something
merriment expressed by a brightness or gleam or animation of countenance	status in the eyes of others
mental understanding as an enlightening experience	impudent aggressiveness
a particular perspective or aspect of a situation	the feelings expressed on a person's face
public awareness	the front of the human head from the forehead to the chin and ear to ear
a visual warning signal	the part of an animal corresponding to the human face
an illuminated area	a specific size and style of type within a type family
a person regarded very fondly	a contorted facial expression
(physics) electromagnetic radiation that can produce a visual sensation	a surface forming part of the outside of an object
having abundant light or illumination	a part of a person that is used to refer to a person
a condition of spiritual awareness; divine illumination

light (adjective)	face (adjective)
of comparatively little physical weight or density
psychologically light; especially free from sadness or troubles
not great in degree or quantity or number
of the military or industry; using (or being) relatively small or light arms or equipment
(used of color) having a relatively small amount of coloring agent
characterized by or emitting light
(physics, chemistry) not having atomic weight greater than average
of little intensity or power or force
easily assimilated in the alimentary canal; not rich or heavily seasoned
silly or trivial
weak and likely to lose consciousness
having little importance
less than the correct or legal or full amount often deliberately so
designed for ease of movement or to carry little weight
moving easily and quickly; nimble
(used of soil) loose and large-grained in consistency
having relatively few calories
(of sound or color) free from anything that dulls or dims
(of sleep) easily disturbed
marked by temperance in indulgence
very thin and insubstantial
casual and unrestrained in sexual behavior
demanding little effort; not burdensome
(used of vowels or syllables) pronounced with little or no stress
intended primarily as entertainment; not serious or profound

light (verb)	face (verb)
introduce light into	deal with (something unpleasant) head on
start or maintain a fire in	present somebody with something, usually to accuse or criticize
begin to smoke	oppose, as in hostility or a competition
to come to rest, settle	line the edge (of a garment) with a different material
alight from (a horse)	cover the front or surface of
fall to somebody by assignment or lot; passed	turn so as to face; turn the face in a certain direction
cause to start burning; subject to fire or great heat	turn so as to expose the face
	be oriented in a certain direction, often with respect to another reference point; be opposite to
	be opposite

light (adverb)	face (adverb)
with few burdens