earlap vs earflap

earlap and earflap both are nouns.

Word	Noun	Adjective	Verb	Adverb
earlap	Yes	No	No	No
earflap	Yes	No	No	No

As nouns, earlap and earflap are synonyms defined as:

earlap and earflap: one of two flaps attached to a cap to keep the ears warm

earlap (noun)	earflap (noun)
one of two flaps attached to a cap to keep the ears warm	one of two flaps attached to a cap to keep the ears warm