light-haired vs blond

light-haired is not a noun while blond is a noun.

Word	Noun	Adjective	Verb	Adverb
light-haired	No	Yes	No	No
blond	Yes	Yes	No	No

As adjectives, light-haired and blond are synonyms defined as:

light-haired and blond: being or having light colored skin and hair and usually blue or grey eyes

Other synonyms of light-haired include blonde.

light-haired (noun)	blond (noun)
	a light grayish yellow to near white
	a male person with fair skin and hair

light-haired (adjective)	blond (adjective)
being or having light colored skin and hair and usually blue or grey eyes	being or having light colored skin and hair and usually blue or grey eyes