laugh line vs crow's feet

laugh line and crow's feet both are nouns.

Word	Noun	Adjective	Verb	Adverb
laugh line	Yes	No	No	No
crow's feet	Yes	No	No	No

As nouns, laugh line and crow's feet are synonyms defined as:

laugh line and crow's feet: a wrinkle in the skin at the outer corner of your eyes

Other synonyms of laugh line include crow's foot.

laugh line (noun)	crow's feet (noun)
the point of a joke or humorous story	a wrinkle in the skin at the outer corner of your eyes
a wrinkle in the skin at the outer corner of your eyes