jargon vs bunk off

jargon is a noun but bunk off is not a noun.

Word	Noun	Adjective	Verb	Adverb
jargon	Yes	No	No	No
bunk off	No	No	Yes	No

jargon (noun)	bunk off (noun)
a characteristic language of a particular group (as among thieves)
specialized technical terminology characteristic of a particular subject
a colorless (or pale yellow or smoky) variety of zircon

jargon (verb)	bunk off (verb)
	play truant from work or school