earflap vs earlap

earflap and earlap both are nouns.

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

As nouns, earflap and earlap are synonyms defined as:

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

earflap (noun)	earlap (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