run on vs speak

run on and speak both are verbs.

Word	Noun	Adjective	Verb	Adverb
run on	No	No	Yes	No
speak	No	No	Yes	No

As verbs, speak is a hypernym of run on; that is, speak is a word with a broader meaning than run on:

Other hypernyms of run on include talk.

run on (verb)	speak (verb)
talk or narrate at length	express in speech
continue uninterrupted	exchange thoughts; talk with
	use language
	give a speech to
	make a characteristic or natural sound