overlap vs lapel

overlap and lapel both are nouns.

Word	Noun	Adjective	Verb	Adverb
overlap	Yes	No	Yes	No
lapel	Yes	No	No	No

As nouns, lapel is a hyponym of overlap; that is, lapel is a word with a more specific, narrower meaning than overlap:

Other hyponyms of overlap include cuff, turnup, lappet.

overlap (noun)	lapel (noun)
a flap that lies over another part	lap at the front of a coat; continuation of the coat collar
the property of partial coincidence in time
a representation of common ground between theories or phenomena

overlap (verb)	lapel (verb)
extend over and cover a part of
coincide partially or wholly