carry on vs speak

carry on and speak both are verbs.

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

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

Other hypernyms of carry on include talk.

carry on (verb)	speak (verb)
continue talking	express in speech
direct the course of; manage or control	exchange thoughts; talk with
misbehave badly; act in a silly or improper way	use language
keep or maintain in unaltered condition; cause to remain or last	give a speech to
	make a characteristic or natural sound