debris vs junk

debris and junk both are nouns.

Word	Noun	Adjective	Verb	Adverb
debris	Yes	No	No	No
junk	Yes	No	Yes	No

As nouns, debris and junk are synonyms defined as:

debris and junk: the remains of something that has been destroyed or broken up

Other synonyms of debris include detritus, dust, rubble.

debris (noun)	junk (noun)
the remains of something that has been destroyed or broken up	any of various Chinese boats with a high poop and lugsails
	the remains of something that has been destroyed or broken up

debris (verb)	junk (verb)
	dispose of (something useless or old)