headline vs supply

headline and supply both are nouns.

Word	Noun	Adjective	Verb	Adverb
headline	Yes	No	Yes	No
supply	Yes	No	Yes	No

As verbs, supply is a hypernym of headline; that is, supply is a word with a broader meaning than headline:

Other hypernyms of headline include furnish, offer, provide, render.

headline (noun)	supply (noun)
the heading or caption of a newspaper article	the activity of supplying or providing something
	offering goods and services for sale
	an amount of something available for use

headline (verb)	supply (verb)
publicize widely or highly, as if with a headline	state or say further
provide (a newspaper page or a story) with a headline	give what is desired or needed, especially support, food or sustenance
	give something useful or necessary to
	circulate or distribute or equip with